The 4-3 can easily be run with this team. The fact that Spags or any other coach would revert to a 4-3 is not at all an impediment.
DE Shaun Ellis
DT Kris Jenkins
DT C.J. Mosley (Yes, I know it's C.J. friggin' Mosley, but he has a great motor. I'm sure he'll be able to get penetration with Jenkins likely commanding a double team.)
DE Vernon Gholston (He played this position in college...when he was actually good.)
OLB Calvin Pace (This might be an issue, but we're paying him too much money to dump him. We should just let him blitz a lot.)
MLB David Harris
OLB Eric Barton/Jason Trusnik/Free Agent/Draft Pick
Kenyon Coleman and Bryan Thomas need to be cut. As long as we fix the secondary, this should be a solid defense.