Your post sent me back to some notes I made for a similar talk awhile ago. Here's an excerpt concerning something I'd think that they need to hear:
"If you're good enough, they'll find you" is one of the most dangerous statements commonly uttered about the recruiting process. Did you ever stop and think who "they" are? If you're determined to play, say, at Stanford, is the recruiter from Stanford coming to the fields where you play? How is the recruiter from Stanford going to know of your interest? How is he going to know where to come to see you play? Without a carefully planned and executed effort by the player to put himself in position to be known by colleges of interest to him, it's improbable that the RIGHT schools will know of his interest and ability.