ANN ARBOR -- Greg Frey knows what the statistics look like and understands the criticism.
Michigan's offensive line ranks 118th nationally in tackles allowed for a loss (8.0 per game) and 109th in sacks allowed (3.0) through four games. Not exactly favorable numbers for a successful offense.
Which is why the coaches and players spent the bye week watching film, on themselves and Michigan State, with the goal of identifying potential issues.
"These are great coaches that we face week in and week out, in the best football conference in America," Frey said. "They dissect you.