[bolingbaker]

You're right, fraternities do have a lot of varsity athletes in the south, but it's not exclusive. Athletes join lots of places. Trust me, if a guy doesn't want to join he will use the coach as an excuse. Of course coaches don't want their kids to join fraternities. They don't want them to do ANYTHING that will interfere with their commitment to the sport. But the coaches can't have everything they want, and no coach wants to be accused to keeping their student-athletes from behaving like normal students.
Tom & KT: I'm a Florida State guy. Robert Urich is indeed a loyal Lambda Chi alum. LXA has had many fine FSU athletes at FSU. Burt Reynolds is a Phi Delt. And Dick Howser, college All-American and manager of the Royals, was a Sigma Nu.
I'd suggest this: you and several other alumni go meet with the coach and tell him there are men who want to join Lambda Chi (you don't have to give names; in fact it's best if he assumes you're getting information from inside). Tell him what LXA stands for and teaches. Tell him that you support him, and that you understand that he doesn't want to isolate players from the mainstream of campus life. Use that word 'isolate'. If he tells you that the team is a fraternity, you say simply "No, it is not. The members of the team don't choose each other" Tell him you can help him achieve what he wants by ensuring support form the students, and by encouraging scholarship. If he's a jerk, go directly to the university president and relay your conversation.
Finally, the varsity athletes at FSD tend to concentrate in one fraternity now, but there's no reason they can't join others. Athletes join for the same reason anyone else joins: SOMEONE ASKS THEM.