I heard this from a volleyball coach once: Put them all on the line and anyone that is wearing a watch or has unathletic socks on gets cut. Now it is a joke, but it has a lot of validity to it.
One girl who has never played before (and might only be a pinch runner for a while as she learns the game/develops other skills) actually asked me if I was joking. A couple of them looked like they were going to cry.
