I think the retirement of JT will have a bigger effect than Allen's departure. Where will we get those 10 sacks?
We won't even miss Langford.
Hopefully Bell will resign, otherwise we will be drafting a rookie to replace him. The other journeyman players we have will hold the SS position until the rookie is ready.
Nolan was a figure head last year. His heart wasn't into the game. He wanted out. When Bowles took over the play calling the defense responded and played much closer to potential. For that reason, Nolan's departure is a good thing. Bowles departure was the big loss IMHO.
I think Coyle will give everything he has to make this defense very good. Hopefully he will watch the tapes from last year to help get a feel for when to blitz and stay home. I will not say I have confidence in him yet, but I will give him the benefit of doubt until we start getting shreaded.