He hit huge on Suh. Zack Bowman was a very good JUCO pick up. Had maybe 4 other guys that played at or above expectations from the '05 class, and several significant underachievers. The vast majority of the noteworthy guys were on defense... if anything, the defensive staff was doing the better work there (I think Blake was the driving force for a lot of it). '06-'07 classes were not even close in reality to their rankings.
Offense was empty calories who massively padded stats because Callahan left starters in & kept throwing during garbage time.
He got some talent here, but not nearly as much as people like to think, & never had an offense that could do anything against decent teams.
OL stuff was great (particularly pass-pro), I just think almost everything else about his reputation is a mirage.