For the first time this season, Michigan's offense looked stagnant for prolonged stretches against Ohio State, largely due to the Buckeyes shutting down the pick and roll game. Going back over the film, it was clear much of this had to do with the on-ball defense of Aaron Craft, who hounded Trey Burke into a 4-for-13 shooting performance.
Interestingly, Craft was able to get away with going under the screen for most of the game despite Burke hitting a three-pointer when he did so in the game's opening minutes. With Burke not shooting over the top, Craft was able to take away his ability to get to the basket, and with that the easy buckets that Burke usually creates for himself and his teammates.
While Craft played a stellar defensive game, however, it wasn't his play alone that mitigated Michigan's go-to offensive play; the Wolverines simply didn't execute well on offense. Here's one such example—Michigan has just reset after an offensive rebound, and Mitch McGary comes out to set a screen for Burke:
Note that there's plenty of space in the middle of the Buckeye defense above. In the next frame, you'll see Craft has gone over McGary's screen and is now stuck behind Burke, so OSU center Evan Ravenel steps up to cut off the drive while McGary starts his roll to the basket:
At this juncture, Michigan should be able to create a good look. Burke is past Craft and therefore occupying Ravenel. McGary is heading to the basket, which should force Deshaun Thomas (defending in the paint) to abandon guarding Tim Hardaway Jr. entirely—which, of course, leaves one Buckeye to guard both Hardaway and Nik Stauskas. If Sam Thompson—at the top of the screen—comes down to help, Glenn Robinson III should be open in the corner for a... wait, Glenn, where are you going?
Unfortunately for Michigan, Robinson cut to the basket at precisely the wrong time—he heads right into the space that McGary is cutting towards. When coaches talk about the importance of spacing, this is what they're talking about. The spacing issues Robinson's cut creates are really apparent in the next frame:
Even though Burke still has a step on Craft, OSU has every Michigan option covered. Ravenel is both taking away the drive and any passing lane to McGary, while Thompson is doing the same on Robinson. Thomas is able to step out on Hardaway. Stauskas is occupied in the corner. Now Burke is forced to try to make something out of nothing:
That something turns out to be a contested layup over Ravenel that doesn't even catch iron. Note that a small blanket could cover both Robinson and McGary.
While Craft recovered nicely, this is a play that should've resulted in a Michigan basket, but it was thwarted by inexperience; a simple mistimed cut from Robinson is enough to throw off the entire play.
As Michigan romped through non-conference play, it was easy to forgot that they're still a very young team. Some freshman mistakes are more obvious than others, like when Caris LeVert threw a pass to no one after leaving his feet, giving Ohio State an easy fast break layup. Plays like the one above—after a reset, when a player needs to know on the fly where the offense calls for him to be on the floor—are more subtle, but also show off mistakes born from inexperience.
Those plays should be fewer and farther between as the season goes along; at the same time, this team is going to rely all year on five freshmen. Trey Burke is a great example of a player making a big leap after getting familiar with John Beilein's system—that leap, of course, came between his freshman and sophomore seasons. It's doubtful Michigan is going to eliminate these types of errors by March.
That's not to say Michigan can't make the Final Four by sheer force of talent combined with Beilein's coaching; if they do, though, they'll have to overcome their youth.