Im going to vote other. I think we had problems on both sides of the ball last season. The D can't win games alone, and the O needs to score at least say 21 points to consistently win games. Since I can't vote JC (I think we only go as far as he can take us by performance) Ill say the D-line. We need to create pressure which in turn will lead to turnovers and 3 and outs.
On a side note, heres me and Rocky:
And Golston...
(pics from Renaldo Wynn's car show at redskins park)