I'm not a big fan of Cosgrove, but I dont think when things go bad it's simply his fault or error. I think our LBs are not quick or fast as you see with teams like LSU, Oklahoma, USC, etc. They miss tackles at times too. And our D-line did a good job, just not enough depth there for keeping them fresh. The secondary has improved some, but overall this defensive unit will come together as the season progresses.
With that said, the Defense played good enough to keep Wake Forest to only 17 points and made big stops (goal line, and the INT turnover) when it was needed. I thought they did good. As for Coz, I didnt see a problem yesterday.