This pair of plays is striking only in comparison to the defense. They're both inside zone runs Michigan gets about a yard on, but one's a third and goal from the one so that's all you can get from there. The first is in the second overtime; Michigan has just executed a throwback wheel of its own for a first down at the eleven. They come out in a three-wide.
Illinois does their usual bit with a linebacker over a slot receiver, but this time he's going to walk down and blitz:
Michigan's running an inside zone. This can go anywhere but on this play the hole opens up behind everything as Illinois is slanting away from their blitz. By the mesh point something odd is happening:
The backside defensive end is headed directly upfield. Most of the time the DE will either sit and contain, shuffle down the LOS, or roar down it. Here he's getting way upfield. Two reasons for this, I think: 1) he really really has to contain because of the corner blitz and must not let the QB outside of him, and 2) by doing this he guarantees a handoff.
Meanwhile, Webb's pulling to the backside of the play to get a block on whoever the cutback guy is for Illinois. Because of the switch this is not the DE but the slot LB. Webb does not realize this:
[Update: commenters point out this is actually Koger, which it is. Apologies to Webb.]
Oops. With Webb blocking the guy who the zone read is supposed to option off Michigan's left a free hitter on the backside. He tracks…
Michigan gets two yards and eventually has to resort to a Houdini escape when Terry Hawthorne jumps a third and eight slant. The deflection miraculously bounces to Hemingway.
The second play is Michigan's second to last play of the game. It's third and goal from the one. On first down an inside zone run was stuffed when Schilling got slanted under. On second down a QB lead draw was stuffed when Forcier went airborne unnecessarily. On third down Michigan comes out in a three-wide package. From the one.
Before the snap the corner walks down again:
Illinois runs the same curve, shooting the DE directly upfield after several plays where he was tearing downhill at the RB; he made the tackle on first and goal. Webb, however, is taking a much different angle:
Huyge and Omameh are blocking downfield but not that well. Spence chucks Omameh to the ground and shows up in the hole; Webb is still headed for the slot LB:
Shaw hits it directly upfield in this useless screenshot and does get the ball over the plane, but here's Tate celebrating:
So… that's an adjustment to an Illinois adjustment. After getting fooled by this the one(!) time it came out earlier, Michigan goes to the sideline for mere moments—the offense has to come right back out. In these moments someone grabs Webb and says "if the DE goes straight upfield your assignment is the linebacker crashing in from the slot." Then Michigan seems to invite that very play by coming out in a three-wide formation on third and goal from the one. They want that DE to erase himself and for a LB to get singled up on the 260 pound Webb. His block provides the extra momentum that barely gets Shaw over the plane.
The reason I'm so down on the defense and high on the offense is that these things seem to happen on one side of the ball but not another. It should be clear that no one's on the keeper when Scheelhaase takes it for big yardage, but then he does it again on the exact same play. It should be clear that something's not right in the way you're defending the option but nothing really changes. Etc. Michigan's offense adapts in ways the defense doesn't, and I don't think it's youth when the players who can't contain a keeper are Roh and Mouton.
Chitownblue asked about an RPS plus on the final play of the game, but that's an example of what I'm talking about. Illinois runs the same play they got their earlier conversion on and Michigan runs the same defense. You've got a rub route against man coverage and a seven-man protection you're blitzing into. If Illinois had gotten to pick Michigan's defense on that final play, they would have picked a man-zero all out blitz. They got it, but Jonas Mouton saved the day by making a great play. If he gets cut or just blocked Scheelhaase rolls away from Roh and has a receiver wide open for a score.
It is in these ways that Michigan's defense is different from its offense.
Bonus: you know that corner who jumped the slant in the second OT and should have had Michigan in fourth and long but for some Notre Dame-level BS? Michigan ran a circle route (a fake slant to an out) on the two point conversion and got Hemingway wide open.