Really good points so far.
BackstopDad32 - I completely agree that staying on top of it is key and by that, I mean communication is a 2 way street so if a recruit is really interested in a school, he must be proactive in keeping that channel open showing the school his interest and not just sitting back waiting for them to call again. This is something I suspect many (my son included) need to learn. If the schools you are interested in make the first move to open the conversation, you won't seal the deal by passively waiting for them to come talk to you again. You have to show interest and to me that means timley responses to requests for information, being honest in your answers / questions and making an effort to initiate contact.