If they have a new coaching staff, that allows a player a 30 day window to transfer without having to sit out. That is the rule I believe. So even if Ohio State cleaned house, he would still be able to transfer
That only gives players the option to transfer I think, if they've already used their one time transfer then having the option doesn't mean anything. However, currently the courts have paused the one time limit so it may be moot anyway by the time next season rolls around.
Regardless, it's a strange fit for him. They do a good job developing linemen but I'm not sure his skill set will be helped by their scheme. Though I suppose if you pass block 50 times a game he'll either get better at it or not be playing.