Danny O'Neil probably still the starter at QB. Edwards is still dinged up, and Fickell says he probably shouldn't have let him play against Maryland. But Edwards is listed at #1 on the depth chart.
Renfro isn't listed as the center on the depth chart, but he may get some time.
And yes, the Wisconsin front line is pretty solid against the run, but they haven't been very good in the passing game. While I'm sure Michigan would prefer to run the ball, they will take what the Badgers will give through the air, and so far that's been a lot. If Maryland's freshman qb can shred the Badgers, what will Michigan's wunderkind freshman qb do?
And to those--SM, I'm looking at you--thinking the Badger d will hold up better than I predicted, this is a serious question: have you actually seen the Badgers play this year, or just the highlights or for a few minutes while flipping between channels? I ask because my impression from watching full games is that this team is really not good.