I don't think Gully and Hitch were "his guys." You knew he was going to fire Gully, Joe N's budget pick. He had to make Hitch's dismissal look good, since Hitch was the bosses choice (TG). I recall him saying that Ruff was going to be fired, but there were a lot of injuries that season, and he felt since they came back late in the year, he deserved the chance to see what he could do with a full roster.
Monty he had to let go, for accountability non ice actions.
Bones? Time will tell, but I think he will evaulate the circumstances, the injuries, weird season, Cup run last year, and decide one more year of Bones is just fine.