Attrition the second: Rich Rodriguez announced that backup DT Jason Kates has decided to leave the team($, info in header). Kates hadn't seen a single snap this year AFAIK and that was an ominous sign for a redshirt sophomore; he's probably looking for playing time and that Not Throwing Up Every Weekday major mentioned earlier.
Oh, and Steve Schilling might miss the Ohio State game. Not that it's likely to matter.
Back to Kates: he wasn't likely to contribute if he couldn't see the field at all this year. However, defensive tackle is now looking mighty thin: Mike Martin set a high bar for himself this year and will no doubt start; the only other 2009 DT on the roster at the moment is Renaldo Sagesse, who saw spot duty at various points during the season. He had limited impact. If Will Campbell recommits as expected he'll get at least as much playing time as Martin did this year and may leap directly into the starting lineup.