It probably wouldn't matter anyway. These are just bad players.
Elephant in the room that no one wants to talk about. The GM has built this defense on a core of aging and/or injury prone players.
Projected Starters
Ware: Aging/Injured
Hatcher: Aging/Injured
Ratliff: Aging/Injured/cut
Spencer: Aging/Injured
Lee: Injury Prone/Injured
Carter: Injury Prone/OK
Durant: Average/Injured
Church: Average/OK
Allen: Aging/Average/Cut
Carr: OK
Claiborne: Injured
Key backups:
Scandrick: OK
Wilber: OK
Crawford: Injured
Brent: Suspended/Retired
Wilcox: Rookie/Injured
The above list is plain ridiculous.
Some of it, like Durant, Crawford, Wilcox, and Claiborne, is just bad luck and part of pro football. But Spencer, Ware, Ratliff, and Hatcher are all over 29 and most over 30. Lee and Carter have never been healthy. Ernie Simms and Barry Church are not good players, especially in pass defense. It's so bad these guys make me wish Bradie James and Roy Williams were back. BW Webb is overmatched.
Hatcher, Carr, Lee, and Scandrick have had outstanding seasons, but you'd never have known it thanks to injuries and everyone else being overmatched and/or out of position.
This goes far beyond learning a scheme. These players are not good, and the salary cap pretty much ensures it will be the same or worse next season barring a miracle draft.