Now we have to roll with Hill.

Hill must run it and run hit hard. Otherwise, Hill is no more than a practice squad-type QB. I say let him rip it, and if he gets hurt, then see roll with Simian and or Book.
This is why I think Hill won't start. What makes Hill special is the way he runs with anger and ferocity. If you're QB1, especially QB1 coming off a 3-week concussion absence, I doubt you'll have the green light to do that. Without the running, Taysom is an inaccurate passer whose deep balls hang in the air like punts, who's prone to turnovers, and who doesn't go through his progressions if his first option is covered.