I'm going to assume this game is still on for now.
Things to know.
Michigan can rightfully be called an elite rushing team. They run roughly twice as much as they throw and have a versatile tandem in the backfield. Carries have been about even when both are playing, but Jordan Marshall is more the thumper and Haynes is an elusive one-cut guy. They use playaction to keep you honest, but they don't really ask Bryce Underwood to do much. He struggles when they do need him. They predominantly hang out in 12 and 11 personnel.
Michigan's defense is a Wink Martindale defense. They do a whole lot but tend to not be fundamentally sound. He and Venables are kindred spirits in that respect. At some point in the game, we will catch them playing games with their front and pop an explosive run. But they are overall solid up front this year. Where they struggle is the secondary. Safety play has been their biggest issue, even in run support. Wink's reliance on man coverage to make his madness work has also hurt him as the DBs just aren't strong enough of an overall unit to avoid mismatches against strong opponents.
If you are a visiting Michigan fan or otherwise haven't seen Texas play much, I think a fun thing to look for in this game is the contrast with the Texas defense. PK plays very few games and will only really throw curveballs when he sees an opportunity for a strikeout. Instead, the Texas defense emphasizes technique, physicality, and being elite at a few things. Simplicity vs complexity; stability vs chaos.