The problem with this thread and with mandating that a player's verbal/oral commitment to a college be binding is much broader than college sports recruiting. It really has nothing to do with football, or even college sports, at all. This comes down to
contract law.
An agreement between a university and a student-athlete, whereby the student plays a sport for the university in exchange for a college scholarship, is a contract. In order to be legally enforceable, a contract requires an offer, an acceptance, and consideration (the value in connection with the contract).
During the recruiting process, a coach, acting as an agent of the university, makes an offer to a prospect. This terms of this offer basically state that the university agrees to foot the bill for tuition, books, room and board, etc., in exchange for the student agreeing to participate in whatever sport he/she is being recruited for.
Here is why this thread and the argument are pointless to debate. The terms of the contract specify a particular way in which the student must accept the offer. It must be signed by the student and delivered to the university before a specified date, otherwise it is void. It CANNOT be accepted orally. Once the offer is signed by the athlete and returned to the university, a legally enforceable contract comes into existence between the university and the student. Because the method of acceptance -- signing and delivering of the offer -- has been detailed in the contract, an oral commitment means nothing. Therefore, until the offer has been SIGNED by the athlete, any verbal statement, including verbal commitments, means NOTHING.
Basically, for a commitment to be binding, as the thread asks, one of two things must occur. Either a century's worth of contract law precedence must be thrown out in the name of inconvenience to the fans and coaches of college football (highly unlikely), or the scholarship offers must be worded to indicate that an offer may be orally accepted (also highly unlikely).
Either way, it's just something that we're going to have to deal with, because it isn't going away anytime soon.
Oh, and Go Vols!