A LOI (or NLI) is binding upon the athlete.....once signed and submitted, the school must agree to release the prospetive athlete in order for that athlete to pursue another scholarship in that year.....
The clause that Xavier Henry's LOI contains is simply a premptive release......Memphis has agreed, in advance of a request, to release him upon request....
its too much leverage for a coach much less the players......I can't see wide spread use.....
I think the NCAA should allow this rule change......if a coach resigns or is released from his position, a prospective player can be released from his letter WITHOUT the school's concurrance....HOWEVER that athlete should be required to sit a year before gaining eligibility if he attends a school that hires his formr coach