Don't forget the growing trend to "blue-shirt" players now as well. Likely invented at New Mexico State and being heavily used at Tennessee in this recruiting cycle (last I looked they had something like 34 commitments). My laymen term description of a blue-shirt is a player who is verbally promised a scholarship by the coaching staff but in writing they are offered a preferred walkon role. Shortly after they arrive on campus they get place on scholarship. Due to the way this works they count towards the following years class not the incoming class.
The following is a link to a little blog describing the process:
"What’s the advantage for a program? Above all else, the process of assigning a blueshirt pushes a recruit’s scholarship number to the ensuing class, regardless of when he joined the program. Look at it like this: it’s like a greyshirt, but one where the recruit can actually play during his initial semester. A player is part of the 2010 recruiting cycle, for example, plays during the 2010 season yet counts towards the 2011 recruiting class. That’s a blueshirt in a nutshell."
http://www.presnapread.com/whats-a-blue-shirt-anyway/
Coaches have found ways around the rules and will continue to do so to whatever changes get pushed down. I agree with Bullwinkle in the sense that if we need to find a slot for a stud athlete we certainly will.