Not too surprisingly, Holgorsen is a good coach. In the last two weeks, the Nebraska has demonstrated they can execute his offense well against (vastly) inferior talent. No punts in two weeks. One turnover. No negative yardage plays last week. Pretty clean penalty-wise. Sure, it's against shitty competition, but it's been a while since Nebraska has executed well against shitty competition. To me, the biggest positive note is that the second team has come and continued to operate at a high level. It's a well coached squad, up and down the chart, and that is a credit to Holgorsen. The big questions are 1)how much of a talent-delta is there to the top 25 or top 10, 2) how well the offense can execute against better d-lines and blitz packages.
Defensively, the missed tackles are my biggest concern. The team seems to swarm to the ball well, but missing tackles against will kill them against talented backs and mobile quarterbacks.
I don't know if Nebraska should beat Michigan, but I would take the over. (UM is a 2.5 point favorite with a 45.5 point o/u.)