Ok, this is way way out there. If it's too stupid for you to consider just don't worry about it.
Could a kid play his freshman year at Michigan as a walk on (Does not sign ANY Letter of Intent) then leave and play somewhere else immediately?
Say a kid just doesn't know where he wants to go. (Many many seniors in high school go to a local college for a year before moving on.) Or, what if a kid doesn't get recruited? Goes to Eastern Michigan and plays as a alk on as a freshman. Michigan sees him and wants him. Can we "get" him? Or since he played a year does that then "commit" him to the university EVEN if it's as a walk on?
Getting very hypothetical here.