So the real question is, did your son have more options before he committed to this one school for ED? And if so, what were those options? With extremely selective schools, ED is almost a necessity for admission (and even then doesn't always work); so, backups need either to be schools with ED2 where coaches can give support, or schools where he could be admitted RD without official coach support. Only you know if such schools are out there. At that point it will depend on how good his baseball skills are, combined with how good his academic record is, every coach knows the combination that fits his school. Still, unless his baseball skills are outstanding, it would be better for him to be some degree "recruited" at those schools - meaning coach saw him at a showcase, camp, or visit - rather than just to show up in the fall. If he has not been seen by anyone except his ED school, then go to AZ. He'd just have to be prepared for strange conversations with coaches, along the lines of "I'm committed to XXX, but I'd like to play for you, too." Coaches do talk to teach other; chances are if they hear that, they will ask the ED coach, so be prepared for that, too.