No. 6 Michigan committed several critical errors in its loss at No. 8 Michigan State on Saturday. The most scrutinized of those will be Jim Harbaugh's decision to bring in freshman quarterback J.J. McCarthy for a play that ended in a game-changing fumble.

The play came at a critical juncture, with the Wolverines nursing a 33-30 lead midway through the fourth quarter; the defense had just forced a punt after giving up consecutive scoring drives that ended in successful 2-point conversions. The Michigan offense took over at its 45-yard line, needing only to score a touchdown on a short field — or at least eat some clock and pin the Spartans deep — to escape East Lansing with a win.