You're right. Even when TO was here, he went from the OC for Devaney, to QB coach and OC. Then to HC and all those duties plus being the coordinator and calling the plays, but passed the QB coaching duties to Gill.
Most, not all, HC's are now just CEO types. That would have never worked for TO cause he needed to be hands on. The game has changed so much those duties have to be assigned to other staffers.
Thus far, Mickey has taken on the role of Interim Head Coach very well. It must be hard for a guy like him, who is so hands-on to let go of some of his favorite duties.
I think he's learning and trying to grow, and seems more comfortable as each week passes. The thing may still blow up in his face, but at this point he has been making a lot of really good moves.
He talks alot about "the boys" and he may have a unique way of being able to communicate with them that stiffies like Brian Kelly, Harsin, Bill O'Brien and others just don't have in their personality.