Milton can run, he just doesn't necessarily want to at times. He also has a better arm than Hooker and he will be in the system for a third year come next season, so we get to see his progress when he starts the opener. I don't think there is going to be a huge drop-off between him and Hooker.
Milton is a noncontact football player. It affects everything he does on the field. The good news ? Hep will get the Milton out of his system when he loses big time at the Swamp next year if he hasn't been benched prior to that. The era of Nico then begins.