I was at The Game. I certainly had no expectations of seeing them win, but I did expect a closer game, which it should've been.
Offensively, Michigan had some good drives early and then made some dumb mistakes, between the fumble inside the 20, settling for 2 FGs when they probably should've gone for it, calling a few too many running plays when it was clear that the passing game was the team's only chance, and then some bad passes, bad drops, and questionable play-calls. Michigan could've and probably should've gotten 42 points.
Defensively it was even more frustrating. Dobbins is good, but he's not as good as Michigan made him look. The DL just got dominated and the LBs allowed some bigger plays than they should've too. The secondary did okay, but they got beat bad on a few big plays and whenever Fields was able to scramble around the coverage often broke donw to allow a first down.
All that said, someday OSU will fall back from its current level of dominance. Until that happens, though, it is what it is.