Question: could you bring a two-sport player onto the football team and apply his scholarship to the other sport he plays? Then for the football team he could be considered a walk-on since he already has a scholarship?
This could be further exploited by just arbitrarily putting football players in other sports they can't play. For a variety of reasons, a school like Michigan probably wouldn't go that far, but I could see less self-righteous schools doing it. A Kansas State swimming team consisting of 300 lb guys with dreadlocks springs to mind.
Anyway, my guess is I'm missing some safeguard in the NCAA rulebook. Thoughts?