Say what you want, but to me D-line should be the focus for the offseason. Unfortunately, McC has done a relatively poor job in this area and will have to improve in order for the entire Defense to get better.
Lets start here with an outstanding article from Keim:
Redskins' defensive line must be helped by free agency, draft - Washington Redskins Blog- ESPN
We must resign Baker, we must add a top notch free agent talent, and we must add a D-Lineman with 1 of our first 2 picks.