There is no real proof he's ever known how to run on the college level.He's 20. Unless he has a severe injury, he didn't forget how to run.
The only relevant "proof" to that end was one game: the Army AA game. In Kansas HSFB, he was simply that much more athletic than everyone else.
A hypothesis here:
What if he hates Kansas State, never wanted to be there to begin with, and only there to make his dad happy. You think he's going to be 100% committed? No.
Not committed to playing a year then getting paid? Possible but not likely.