Honestly the problems this team had this year are the same problems from last year ( that's why it's hard to not have some fault on coaches ) * Inability to commit to the run game long enough for it to be established, foolish penalties on both sides of the ball, and an unimaginative passing attack.
Defensely this team must add more pass rushers and CBs.. depth in those areas are extremely thin, anytime Jimmy Smith went down the defense crumbled the most obvious example being the Giants game.
Terrell Suggs with a Torn bicep was still was the most effective and consistent pass rusher on this team..
I believe these DBs need to work on what I will call spacial recognition ~ if it's 3rd down and 6 or 3rd and goal don't give the WR an eight yard cushion. A defense is called but these guys choose their technique and spacing.
The team had a million different oline combinations, unfortunately Jeremy Zuttah was apart of them all, I hope they can find a suitable replacement for him. Wagner stepped up big as the season went on so I think he just priced himself out of our range like KO.
WRs- again spacial recognition, if it's 3rd and 6 why are receivers and tight-ends running 4yd routes, it's stupid especially given the lack of passes in stride.
* WRs & TEs need to make more tough plays, this means those highly contested passes, learn how to make themselves available on broken plays, practice breaking off a route and coming back to the QB. Too often on broken play guys would be standing around after their curl route only S.Smith had the sense to fight back to the ball I hope they learned something!