Couple of things we are missing from the SB winning year. First off a D line rotation. Bennett, Avril, Clemons, ect did not play dam near every snap. I can remember talks about whether Bennett and Avril would be happy with the more limited role they were playing in those days. More snaps equals tired players come the end of the game. We need to get back to a healthy rotation, meaning less snaps but far fresher legs at the end of the game. Second, we need another Big bruiser corner opposite of Sherm. Shead and Lane are not going to cut it, they aren't physical enough. Lane has not looked the same after the injury, Shead won't either when he comes back. On D, I believe that is it. Fix these two areas and we are back to punching people in the nose.
On Offensive, nothing needs to be said that everyone doesn't already know. Oline, Oline, Oline. If you can block you can put any back in there and he will be serviceable. Look at the Broncos under Mike S. every year a back no one ever heard of and every year a 1000 yard guy.