You have a big, physical QB who plays within a triple option ... the kid will get yards. The problem is that in the college game, it's a lot more difficult to find a fit for him.
For most teams, except military academies and Georgia Tech, he wouldn't fit at QB. So where do you put him?
Maybe at RB ... but part of his success before as an option QB was able to use the option to maneuver into space without facing much contact. That's not how things work for the majority of D1 running backs - they typically don't have a lot of space to work with, so they have to find a crease and handle contact ... often, a lot of it.
Where else? Interior WR (like the slot) makes a lot of sense ... the short passing game to such guys is essentially an extension of the running game. That makes his touches there a much better approximation to his touches as an option QB. Being a QB, he's likely strong and smart ... so those factors will likely impact how quickly he can get down routes ... and also impact how well he can handle jams on the line-of-scrimmage.
Otherwise, many programs would possible look at his general athleticism and project him to S or LB ... but his heart obviously is set more on making plays with the ball in his hands. Thus, you have to project where on O he'll fit the best.
How or where would your project him?