I think a 1st round DT will a help a lot faster than a 1st round OL, or that the odds are higher of a 1st round DT helping faster than a 1st round OL. And the lack of a stud DT this year killed the Bills' defense. I don't know if Ngata is the guy, or if the Bills can find a DT in FA, but that's the #1 priority in my mind. Because with a good defense, you at least have a chance. Then take the promising guys on the O-line (Peters, Preston, Gandy at OG) and add a FA or two there, drafting one for the future.