As Michigan's offense inches forward, its defense remains ridiculous

Michigan coach Jim Harbaugh says John O'Korn played great and saw the whole field in the 28-10 win over Purdue on Sept. 23, 2017 in West Lafayette, Ind.Nick Baumgardner, Detroit Free Press

(Photo: Brian Spurlock, USA TODAY Sports)WEST LAFAYETTE, Ind. -- It's not supposed to be this hot in late September. Not in the Midwest. Not in Indiana.

Still, less than 30 minutes after watching his young football team find a way on an unseasonably warm night in West Lafayette, Indiana, Jim Harbaugh stood in the back corner of a sweat-soaked annex inside Ross-Ade Stadium with an uncomfortable smile.

"There's no air conditioning in this locker room," Harbaugh exclaimed, not as a complaint, but as a badge of…