Can Jared Allen, Shea McClellin emerge at linebacker?

Here is the seventh of eight positional breakdowns of the Chicago Bears' offseason roster following the NFL draft.

Position: Linebacker

Notable additions: Pernell McPhee, Sam Acho and Mason Foster

Notable subtractions: Lance Briggs, D.J. Williams and Khaseem Greene

Summary: The Bears paid McPhee $15.5 million in guaranteed cash to be one of their starting outside linebackers. McPhee (pictured) is expected to rush from multiple positions and be used in a variety of ways. Former 4-3 defensive ends Jared Allen, Lamarr Houston (injured) and Willie Young (injured) are listed as outside linebackers on the Bears' offseason roster. However, the Bears plan to be in a 5-2 (five defensive linemen, two linebackers) front a substantial amount of the time, so the ex-pass-rushers will probably be asked to once again line up in a three-point stance depending on the call. David Bass, who is 6-foot-4, is another linebacker believed to possess the versatility to play standing up or with his hand on the ground. Acho is an experienced outside linebacker who started 32 career games for the Arizona Cardinals from 2011-14. Former undrafted rookie free agent Christian Jones -- 98 tackles and two sacks in 2014 -- appears to be a frontrunner to start at inside linebacker. Bears defensive coordinator Vic Fangio recently referred to Jones as a potential building block on defense. Jon Bostic led the Bears with 127 tackles last year, and should contend for a starting role, but don't count out Foster. A free-agent pickup, Foster, 26, excelled in Tampa as an inside linebacker (career-high 105 tackles in 2012) before the Buccaneers switched to a Cover-2 style of defense under coach Lovie Smith. The Bears will also take a look at 2012 first-round pick Shea McClellin at inside linebacker; however after the club declined McClellin's 2016 option, his roster spot is far from guaranteed. McClellin did play linebacker in a 3-4 defense in college at Boise State.