Another in a position-by-position series in advance of the start of free agency on March 17.
INSIDE LINEBACKERS (7)
Marcus Allen, Devin Bush, Ulysees Gilbert, Tegray Scales, Robert Spillane, Vince Williams, Avery Williamson
(Free Agent Scorecard: 1 unrestricted – Avery Williamson)
Take a look at the best photos of the Steelers linebackers during the 2020 season

Pittsburgh Steelers linebacker Olasunkanmi Adeniyi (92) during a regular season game between the Pittsburgh Steelers and the Dallas Cowboys, Sunday, Nov. 8, 2020 in Dallas, TX. (Caitlyn Epes / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Olasunkanmi Adeniyi (92) during a regular season game between the Pittsburgh Steelers and the Jacksonville Jaguars, Sunday, Nov. 22, 2020 in Jacksonville, FL. The Steelers defeated the Jaguars 27-3. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Olasunkanmi Adeniyi (92) during a regular season game between the Pittsburgh Steelers and the Cleveland Browns, Sunday, Oct. 18, 2020 in Pittsburgh, PA. The Steelers defeated the Browns 38-7. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Olasunkanmi Adeniyi (92) during a regular season game between the Pittsburgh Steelers and the Buffalo Bills, Sunday, Dec. 13, 2020 in Buffalo, NY. The Bills defeated the Steelers 26-15. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Olasunkanmi Adeniyi (92) during a regular season game between the Pittsburgh Steelers and the Cincinnati Bengals, Sunday, Nov. 15, 2020 in Pittsburgh, PA. The Steelers defeated the Bengals 36-10. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Olasunkanmi Adeniyi (92) celebrates a crucial play during a regular season game between the Pittsburgh Steelers and the Cincinnati Bengals, Sunday, Nov. 15, 2020 in Pittsburgh, PA. The Steelers beat the Bengals 36-10. (Caitlyn Epes / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Marcus Allen (27) during a regular season game between the Pittsburgh Steelers and the Jacksonville Jaguars, Sunday, Nov. 22, 2020 in Jacksonville, FL. The Steelers defeated the Jaguars 27-3. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Marcus Allen (27) during a regular season game between the Pittsburgh Steelers and the Cleveland Browns, Sunday, Oct. 18, 2020 in Pittsburgh, PA. The Steelers defeated the Browns 38-7. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Marcus Allen (27) during a regular season game between the Pittsburgh Steelers and the Buffalo Bills, Sunday, Dec. 13, 2020 in Buffalo, NY. The Bills defeated the Steelers 26-15. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Marcus Allen (27) during a regular season game between the Pittsburgh Steelers and the Cleveland Browns, Sunday, Oct. 18, 2020 in Pittsburgh, PA. The Steelers beat the Browns 38-7. (Caitlyn Epes / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Marcus Allen (27) during a regular season game between the Pittsburgh Steelers and the Baltimore Ravens, Sunday, Nov. 1, 2020 in Baltimore, MD. The Steelers defeated the Ravens 28-24. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Marcus Allen (27) during a regular season game between the Pittsburgh Steelers and the Cincinnati Bengals, Sunday, Nov. 15, 2020 in Pittsburgh, PA. The Steelers defeated the Bengals 36-10. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Devin Bush (55) during a regular season game between the Pittsburgh Steelers and the Philadelphia Eagles, Sunday, Oct. 11, 2020 in Pittsburgh, PA. The Steelers defeated the Eagles 38-29. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Devin Bush (55) during a regular season game between the Pittsburgh Steelers and the Cleveland Browns, Sunday, Oct. 18, 2020 in Pittsburgh, PA. The Steelers beat the Browns 38-7. (Caitlyn Epes / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Devin Bush (55) during a regular season game between the Pittsburgh Steelers and the Philadelphia Eagles, Sunday, Oct. 11, 2020 in Pittsburgh, PA. The Steelers defeated the Eagles 38-29. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Devin Bush (55) during a regular season game between the Pittsburgh Steelers and the New York Giants, Monday, Sept. 14, 2020 in East Rutherford, NJ. The Steelers defeated the Giants 26-16. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Devin Bush (55) during a regular season game between the Pittsburgh Steelers and the Denver Broncos, Sunday, Sept. 20, 2020 in Pittsburgh, PA. (Caitlyn Epes / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Devin Bush (55) during a regular season game between the Pittsburgh Steelers and the Denver Broncos, Sunday, Sept. 20, 2020 in Pittsburgh, PA. The Steelers defeated the Broncos 26-21. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Bud Dupree (48) sacks Houston Texans quarterback Deshaun Watson during a regular season game between the Pittsburgh Steelers and the Houston Texans, Sunday, Sept. 27, 2020 in Pittsburgh, PA. The Steelers beat the Texans 28-21. (Jared Wickerham / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Bud Dupree (48) during a regular season game between the Pittsburgh Steelers and the Baltimore Ravens, Wednesday, Dec. 2, 2020 in Pittsburgh, PA. The Steelers beat the Ravens 19-14. (Dave Arrigo / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Bud Dupree (48) during a regular season game between the Pittsburgh Steelers and the Cleveland Browns, Sunday, Oct. 18, 2020 in Pittsburgh, PA. The Steelers defeated the Browns 38-7. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Bud Dupree (48) during a regular season game between the Pittsburgh Steelers and the Baltimore Ravens, Wednesday, Dec. 2, 2020 in Pittsburgh, PA. The Steelers defeated the Ravens 19-14. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Bud Dupree (48) during a regular season game between the Pittsburgh Steelers and the Cleveland Browns, Sunday, Oct. 18, 2020 in Pittsburgh, PA. The Steelers defeated the Browns 38-7. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Bud Dupree (48) tackles his opponent during a regular season game between the Pittsburgh Steelers and the New York Giants, Monday, Sept. 14, 2020 in East Rutherford, NJ. The Steelers defeated the Giants 26-16. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Jayrone Elliott (45) during a regular season game between the Pittsburgh Steelers and the Baltimore Ravens, Sunday, Nov. 1, 2020 in Baltimore, MD. The Steelers defeated the Ravens 28-24. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Jayrone Elliott (45) during a regular season game between the Pittsburgh Steelers and the Cleveland Browns, Sunday, Jan. 3, 2021 in Cleveland, OH. The Browns defeated the Steelers 24-22. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Ulysees Gilbert III (54) during a regular season game between the Pittsburgh Steelers and the Philadelphia Eagles, Sunday, Oct. 11, 2020 in Pittsburgh, PA. The Steelers defeated the Eagles 38-29. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Ulysees Gilbert III (54) during a regular season game between the Pittsburgh Steelers and the Buffalo Bills, Sunday, Dec. 13, 2020 in Buffalo, NY. The Bills defeated the Steelers 26-15. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Alex Highsmith (56) during a regular season game between the Pittsburgh Steelers and the Indianapolis Colts, Sunday, Dec. 27, 2020 in Pittsburgh, PA. The Steelers defeated the Colts 28-24. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Alex Highsmith (56) during a regular season game between the Pittsburgh Steelers and the Cleveland Browns, Sunday, Jan. 3, 2021 in Cleveland, OH. The Browns defeated the Steelers 24-22. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Alex Highsmith (56) during a regular season game between the Pittsburgh Steelers and the Washington Football Team, Monday, Dec. 7, 2020 in Pittsburgh, PA. The Washington Football Team defeated the Steelers 23-17. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Alex Highsmith (56) during a regular season game between the Pittsburgh Steelers and the Dallas Cowboys, Sunday, Nov. 8, 2020 in Dallas, TX. The Steelers defeated the Cowboys 24-19. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Alex Highsmith (56) during a regular season game between the Pittsburgh Steelers and the Baltimore Ravens, Sunday, Nov. 1, 2020 in Baltimore, MD. The Steelers defeated the Ravens 28-24. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Alex Highsmith (56) during a regular season game between the Pittsburgh Steelers and the Houston Texans, Sunday, Sept. 27, 2020 in Pittsburgh, PA. The Steelers defeated the Texans 28-21. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Tegray Scales (40) during a regular season game between the Pittsburgh Steelers and the Indianapolis Colts, Sunday, Dec. 27, 2020 in Pittsburgh, PA. The Steelers defeated the Colts 28-24. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Tegray Scales (40) during a regular season game between the Pittsburgh Steelers and the Buffalo Bills, Sunday, Dec. 13, 2020 in Buffalo, NY. The Bills defeated the Steelers 26-15. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Robert Spillane (41) during a regular season game between the Pittsburgh Steelers and the Tennessee Titans, Sunday, Oct. 25, 2020 in Nashville, TN. The Steelers defeated the Titans 27-24. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Robert Spillane (41) during a regular season game between the Pittsburgh Steelers and the Cleveland Browns, Sunday, Oct. 18, 2020 in Pittsburgh, PA. The Steelers defeated the Browns 38-7. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Robert Spillane (41) during a regular season game between the Pittsburgh Steelers and the Cleveland Browns, Sunday, Oct. 18, 2020 in Pittsburgh, PA. The Steelers defeated the Browns 38-7. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Robert Spillane (41) celebrates a crucial play during a regular season game between the Pittsburgh Steelers and the Cleveland Browns, Sunday, Oct. 18, 2020 in Pittsburgh, PA. The Steelers beat the Browns 38-7. (Jared Wickerham / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Robert Spillane (41) during a regular season game between the Pittsburgh Steelers and the Cincinnati Bengals, Sunday, Nov. 15, 2020 in Pittsburgh, PA. The Steelers defeated the Bengals 36-10. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Robert Spillane (41) during a regular season game between the Pittsburgh Steelers and the Baltimore Ravens, Sunday, Nov. 1, 2020 in Baltimore, MD. The Steelers defeated the Ravens 28-24. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker T.J. Watt (90) sacks Houston Texans quarterback Deshaun Watson during a regular season game between the Pittsburgh Steelers and the Houston Texans, Sunday, Sept. 27, 2020 in Pittsburgh, PA. The Steelers defeated the Texans 28-21. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker T.J. Watt (90) during a regular season game between the Pittsburgh Steelers and the Indianapolis Colts, Sunday, Dec. 27, 2020 in Pittsburgh, PA. The Steelers beat the Colts 28-24. (Dave Arrigo / Pittsburgh Steelers)

Pittsburgh Steelers linebacker T.J. Watt (90) celebrates a crucial play during a regular season game between the Pittsburgh Steelers and the Houston Texans, Sunday, Sept. 27, 2020 in Pittsburgh, PA. The Steelers defeated the Texans 28-21. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker T.J. Watt (90) and Pittsburgh Steelers defensive end Stephon Tuitt (91) during a regular season game between the Pittsburgh Steelers and the Washington Football Team, Monday, Dec. 7, 2020 in Pittsburgh, PA. The Washington Football Team defeated the Steelers 23-17. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker T.J. Watt (90) intercepts a pass during a regular season game between the Pittsburgh Steelers and the New York Giants, Monday, Sept. 14, 2020 in East Rutherford, NJ. The Steelers defeated the Giants 26-16. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker T.J. Watt (90) during a regular season game between the Pittsburgh Steelers and the Washington Football Team, Monday, Dec. 7, 2020 in Pittsburgh, PA. The Steelers lost to Washington 17-23. (Caitlyn Epes / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Vince Williams (98) during a regular season game between the Pittsburgh Steelers and the Baltimore Ravens, Sunday, Nov. 1, 2020 in Baltimore, MD. The Steelers defeated the Ravens 28-24. (Ben Solomon / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Vince Williams (98) during a regular season game between the Pittsburgh Steelers and the Baltimore Ravens, Wednesday, Dec. 2, 2020 in Pittsburgh, PA. The Steelers beat the Ravens 19-14. (Caitlyn Epes / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Vince Williams (98) tackles his opponent during a regular season game between the Pittsburgh Steelers and the New York Giants, Monday, Sept. 14, 2020 in East Rutherford, NJ. The Steelers defeated the Giants 26-16. (Ben Solomon / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Vince Williams (98) during a regular season game between the Pittsburgh Steelers and the Denver Broncos, Sunday, Sept. 20, 2020 in Pittsburgh, PA. The Steelers defeated the Broncos 26-21. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Vince Williams (98) during a regular season game between the Pittsburgh Steelers and the Indianapolis Colts, Sunday, Dec. 27, 2020 in Pittsburgh, PA. The Steelers beat the Colts 28-24. (Caitlyn Epes / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Vince Williams (98) during a regular season game between the Pittsburgh Steelers and the Philadelphia Eagles, Sunday, Oct. 11, 2020 in Pittsburgh, PA. The Steelers defeated the Eagles 38-29. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Avery Williamson (51) during a regular season game between the Pittsburgh Steelers and the Cincinnati Bengals, Sunday, Nov. 15, 2020 in Pittsburgh, PA. The Steelers defeated the Bengals 36-10. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Avery Williamson (51) during a regular season game between the Pittsburgh Steelers and the Baltimore Ravens, Wednesday, Dec. 2, 2020 in Pittsburgh, PA. The Steelers defeated the Ravens 19-14. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Avery Williamson (51) during a regular season game between the Pittsburgh Steelers and the Indianapolis Colts, Sunday, Dec. 27, 2020 in Pittsburgh, PA. The Steelers defeated the Colts 28-24. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Avery Williamson (51) during a regular season game between the Pittsburgh Steelers and the Cincinnati Bengals, Sunday, Nov. 15, 2020 in Pittsburgh, PA. The Steelers defeated the Bengals 36-10. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Avery Williamson (51) during a regular season game between the Pittsburgh Steelers and the Jacksonville Jaguars, Sunday, Nov. 22, 2020 in Jacksonville, FL. The Steelers defeated the Jaguars 27-3. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Avery Williamson (51) during a regular season game between the Pittsburgh Steelers and the Indianapolis Colts, Sunday, Dec. 27, 2020 in Pittsburgh, PA. The Steelers defeated the Colts 28-24. (Karl Roser / Pittsburgh Steelers)
A LAST LOOK AT 2020
The Steelers believed they had settled the issue that had developed in the middle of their defense following Ryan Shazier's spinal injury in December 2017 when they traded up in the first round of the 2019 NFL Draft and selected Devin Bush with the 10th overall pick. But when Bush tore an ACL in a 38-7 win over Cleveland at Heinz Field on Oct. 18, their problems returned.
Up until his season was ended by that knee injury, Bush was living up to the expectation of him as an every-down, all-situations inside linebacker. He had played every snap on defense, had three passes defensed, and a couple of hits on the quarterback plus a half-sack in the rare situations he was sent as a pass-rusher. But once Bush was removed from the equation, the middle of the Steelers defense was more vulnerable.
It wasn't that way immediately, because Robert Spillane filled in admirably, but then he was injured, too. This left the Steelers scrambling, and they found themselves having to mix-and-match in the interior of their defense with Marcus Allen, Ulysees Gilbert, and Vince Williams. Then Gilbert was injured, too, and the Steelers made a trade with the Jets to bring Avery Williamson to Pittsburgh, but with so many new and/or inexperienced players having to play so many snaps it wasn't long until opponents began finding ways to take advantage.
Williams ended up leading the unit in tackles with 69, and he also contributed 14 tackles for loss, three sacks, and four hits on the quarterback. Williamson played in eight games for the Steelers and started the four Spillane missed while on injured reserve, and he had 52 tackles, including three for loss, and a sack.
Spillane was the pleasant surprise of the season for the Steelers, and he finished with 43 tackles, including a goal-line stuff of Derrick Henry in Tennessee, to go along with two sacks and an interception he returned for a touchdown in a 28-24 win over the Ravens. Allen, in his first season as a hybrid linebacker, finished with 24 tackles, including two for loss.
ONE STAT THAT STANDS OUT
From the first game of his rookie season until the play against the Browns at Heinz Field last October when he injured his knee – a span of 21 regular season games – Devin Bush played 1,167 defensive snaps, all but 200 of the total, which represented 85.7 percent.
Take a look at photographs of Steelers LB Devin Bush from the 2020 season

Pittsburgh Steelers linebacker Devin Bush (55) during a regular season game between the Pittsburgh Steelers and the Cleveland Browns, Sunday, Oct. 18, 2020 in Pittsburgh, PA. The Steelers beat the Browns 38-7. (Caitlyn Epes / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Devin Bush (55) during a regular season game between the Pittsburgh Steelers and the Philadelphia Eagles, Sunday, Oct. 11, 2020 in Pittsburgh, PA. The Steelers defeated the Eagles 38-29. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Devin Bush (55) during a regular season game between the Pittsburgh Steelers and the Cleveland Browns, Sunday, Oct. 18, 2020 in Pittsburgh, PA. The Steelers defeated the Browns 38-7. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Devin Bush (55) gets into position during a regular season game between the Pittsburgh Steelers and the Philadelphia Eagles, Sunday, Oct. 11, 2020 in Pittsburgh, PA. The Steelers defeated the Eagles 38-29. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Devin Bush (55) during a regular season game between the Pittsburgh Steelers and the New York Giants, Monday, Sept. 14, 2020 in East Rutherford, NJ. The Steelers defeated the Giants 26-16. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Devin Bush (55) during a regular season game between the Pittsburgh Steelers and the Houston Texans, Sunday, Sept. 27, 2020 in Pittsburgh, PA. The Steelers beat the Texans 28-21. (Caitlyn Epes / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Devin Bush (55) during a regular season game between the Pittsburgh Steelers and the New York Giants, Monday, Sept. 14, 2020 in East Rutherford, NJ. The Steelers defeated the Giants 26-16. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Devin Bush (55) tackles Houston Texans quarterback Deshaun Watson during a regular season game between the Pittsburgh Steelers and the Houston Texans, Sunday, Sept. 27, 2020 in Pittsburgh, PA. The Steelers beat the Texans 28-21. (Jared Wickerham / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Devin Bush (55) tackles during a regular season game between the Pittsburgh Steelers and the Houston Texans, Sunday, Sept. 27, 2020 in Pittsburgh, PA. The Steelers defeated the Texans 28-21. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Devin Bush (55) gets into position during a regular season game between the Pittsburgh Steelers and the New York Giants, Monday, Sept. 14, 2020 in East Rutherford, NJ. The Steelers defeated the Giants 26-16. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Devin Bush (55) during a regular season game between the Pittsburgh Steelers and the Denver Broncos, Sunday, Sept. 20, 2020 in Pittsburgh, PA. (Caitlyn Epes / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Devin Bush (55) during a regular season game between the Pittsburgh Steelers and the Denver Broncos, Sunday, Sept. 20, 2020 in Pittsburgh, PA. The Steelers defeated the Broncos 26-21. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Devin Bush (55) during a regular season game between the Pittsburgh Steelers and the Houston Texans, Sunday, Sept. 27, 2020 in Pittsburgh, PA. The Steelers beat the Texans 28-21. (Caitlyn Epes / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Devin Bush (55) during a regular season game between the Pittsburgh Steelers and the Houston Texans, Sunday, Sept. 27, 2020 in Pittsburgh, PA. The Steelers defeated the Texans 28-21. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Devin Bush (55) gets into position during a regular season game between the Pittsburgh Steelers and the Philadelphia Eagles, Sunday, Oct. 11, 2020 in Pittsburgh, PA. The Steelers defeated the Eagles 38-29. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Devin Bush (55) tackles his opponent during a regular season game between the Pittsburgh Steelers and the New York Giants, Monday, Sept. 14, 2020 in East Rutherford, NJ. The Steelers defeated the Giants 26-16. (Ben Solomon / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Devin Bush (55) during a regular season game between the Pittsburgh Steelers and the Philadelphia Eagles, Sunday, Oct. 11, 2020 in Pittsburgh, PA. The Steelers defeated the Eagles 38-29. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Devin Bush (55) during a regular season game between the Pittsburgh Steelers and the Philadelphia Eagles, Sunday, Oct. 11, 2020 in Pittsburgh, PA. The Steelers defeated the Eagles 38-29. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Devin Bush (55) during a regular season game between the Pittsburgh Steelers and the Cleveland Browns, Sunday, Oct. 18, 2020 in Pittsburgh, PA. The Steelers beat the Browns 38-7. (Jared Wickerham / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Devin Bush (55) during a regular season game between the Pittsburgh Steelers and the Denver Broncos, Sunday, Sept. 20, 2020 in Pittsburgh, PA. The Steelers defeated the Broncos 26-21. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Devin Bush (55) during a regular season game between the Pittsburgh Steelers and the Cleveland Browns, Sunday, Oct. 18, 2020 in Pittsburgh, PA. The Steelers defeated the Browns 38-7. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Devin Bush (55) during a regular season game between the Pittsburgh Steelers and the Cleveland Browns, Sunday, Oct. 18, 2020 in Pittsburgh, PA. The Steelers defeated the Browns 38-7. (Karl Roser / Pittsburgh Steelers)

Pittsburgh Steelers linebacker Devin Bush (55) blocks the quarterback during a regular season game between the Pittsburgh Steelers and the Denver Broncos, Sunday, Sept. 20, 2020 in Pittsburgh, PA. The Steelers defeated the Broncos 26-21. (Jared Wickerham / Pittsburgh Steelers)
A LOOK AHEAD TO 2021
The Steelers were able to get their salary cap to a number where they could be compliant come the start of the new league year on March 17 without having to cut any veteran players, but things remain sufficiently tight that any additions/re-signings they might care to make during free agency will have to come with a corresponding move to clear some salary.
One of the names regularly associated with the concept of cap casualties was Vince Williams, but it's difficult to portray the Steelers as a better team simply as a result of his departure. Williams is a throwback to the way inside linebacker used to be played, and he has deficiencies in coverage that opponents often game-plan to exploit. But he's also a physical, intelligent, aggressive linebacker who often sees more playing time than his skill-set might indicate because of his knowledge and ability to communicate on the field to make sure his teammates are "seeing what they're supposed to see and being where they're supposed to be."
Williams is not, and should not be the every-down, all-situations inside linebacker that Bush must be for the Steelers, but he has value if utilized and deployed properly.
That said, Bush is the key to this unit and so far in his short time in the NFL is showing himself to be a key ingredient, both to the immediate performance and to the future development of the defense as a whole. In a recent Zoom call, Bush was optimistic about his rehabilitation from knee surgery, and the Steelers need his unique skill-set every bit as much as they need T.J. Watt coming off the edge and Minkah Fitzpatrick making plays when the ball is in the air.
One benefit of the time Bush missed in 2020 with his knee injury is that it forced the Steelers to identify and begin the development process of other inside linebackers. Spillane is the individual who immediately comes to mind, a Western Michigan product who entered the NFL in 2018 as an undrafted rookie with the Tennessee Titans. Signed to a futures contract by the Steelers in February 2019, he spent that season on the practice squad before getting his big chance when Bush injured his knee.
The addition of Williamson via trade added more depth at a time when it was needed, but the transaction could end up being a short-term rental because he can become an unrestricted free agent on March 17, and there seems to be no clear path to the starting lineup for him barring injuries. Allen was moved from safety to hybrid linebacker during training camp, and he came in handy late in the season when injuries struck the position.
At some positions, the Steelers will look to add depth this offseason, and at others they will be interested in adding some top-end talent. At inside linebacker, as long as Devin Bush stays healthy, they could be OK keeping what they already have.
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