2. The return of Jim Harbaugh made a distinct difference
Not really, but it was encouraging to have their leader back on the sidelines. Their offense didn’t have to do much to handle Iowa. The defense proved again that there is no one better and the special teams made an impact as well. All of that included makes this a slight overreaction that can be disputed.
The officiating seemed to be favorable towards Michigan football. A prime example would be on the Deacon Hill pass attempt that was ruled a fumble, Iowa had a legitimate gripe. His arm was moving forward, but that is a tough call to make regardless. Plus there are always about 10 or so calls that could be called for holding.
Harbaugh didn’t have to whine to the refs like so many do, including him. He had his group primed for an upheaval though. When Iowa was gaining some momentum following a bad punt by Tommy Doman in the second, Michigan’s defense immediately got Iowa’s offense to go three and out. That was their chance to cut into the 10-0 lead and possibly make it a contested contest.