Harbaugh did an excellent job this year. He got a few guys (David Long & Dylan Crawford, in particular) who I would've loved the Buckeyes to get.
If you're looking for solace for this massive injection of talent they just got, just remember: 1) Michigan finished strong, but the Buckeyes' class overall is equally good. Just because Jon Cooper & DeMario McCall committed so long ago doesn't make them any less of a big deal than any of the guys Michigan got late; 2) Given what his brother did, you can very realistically make the argument that you'd take Nick Bosa over Rashan Gary; 3) They "stole" Kareem Walker, and he ended up being ranked below the guy we got to replace him; 4) Harbaugh's only a year in and we're already starting to hear the first signs of issues around the antics that made people hate him everywhere else he went.
Having said all that, I think Michigan's class next year will be even better and one of these years under him they'll get lucky and beat us. But by 2018 there's a 50/50 shot he's either getting on everyone's nerves in Ann Arbor or he's looking back to the NFL (or both).