3. Outside Linebacker
Okay, now we're getting into the more important needs of the Buffalo Bills. With the loss of Matt Milano, the Bills linebacking corps took a major hit. Dorian Williams and Tyrel Dodson have been trying to fill that massive void,, but it's been with mixed results. Williams is still learning the game as a rookie and Dodson's coverage skills aren't the best. Adding a proven outside linebacker would certainly help this hurting defense.
However, I don't think this is as big a need as some might believe. I've said before that the linebacker position has become like the running back position. If you have a solid front four that can keep the linebackers clean and good coverage behind the linebackers, it allows the backers to roam freely from sideline to sideline making plays. Could an upgrade help, absolutely, is it the most important, no.