Michigan will still be very good next year simply because of the defensive players they have returning. They will returned many of the DL, with both of their top DT's returning. Josiah Stewart is returning at DE. Will Johnson is returning at CB. So we will still win games with our defense.
Offense will be interesting. I could see UM going to a ton of RPO's if Orji is the QB. He is supposedly the biggest freak athletes on the team. 6'3" 235 lbs and one of the fastest guys on the team. Can he throw? I don't know

But Michigan has won with QB's who couldn't throw (Denard Robinson).
I definitely don't think UM will be winning a national title next year, but I think we will still be a good team.