Your sports analogy made me think of this thread. (Yes, I am an attention whore bumping my own thread, but I honestly had forgotten I was the one who started it.)
http://www.greekchat.com/gcforums/sh...all#post369141
But quite frankly, I think that rush is more like the NFL draft than we suspect. Such as things like pledging the homely girl because she plays piano and you need someone in the sorority to do that at Greek Sing.