Originally Posted by JRutledge

You are actually right that in neither the NCAA or the NF there is explicit rules about stepping on the line or setting a screen out or bounds and how that is illegal. But I am pretty sure there is an interpretation in NF that does suggest you must set a screen in the field of play, but the actual rules do not seem to back that up.

I am wondering if the NCAA will address this specific play for this very reason. I guess we will have to see.