They should fire the OL coach and let Manning coach them along with being OC. He was actually a pretty good OL coach.It would be if there wasn't a limit on on-field coaches. It can be done, but then the OC or DC likely need to be a position coach as well.
There isn't a Big12 school that has a dedicated ST coach. Probably more likely ST responsibilities would be given to a position coach like Mauser or Broomfield.
Now that he doesn’t coach a position to coach anymore, he has time to work with the OL already. HC’s and coordinators who excel with a position group tend to have that be a good group, because they still work with them a decent amount.They should fire the OL coach and let Manning coach them along with being OC. He was actually a pretty good OL coach.