If he ain't listening, he ain't listening. You are better off helping the ones who want the help.
Have to agree here, and it actually may get to help him, in the long run. Think about it this way:
You're tired with Joe not listening. So you help David, Michael, Aaron, and Scott, Anthony, Brent, Jason, Stephen, and Todd.
Joel sees their scores and average start to improve dramatically, yet still refuses help. He then sees himself pulled from the 1st team, and put on the second team, as their scores continue to go up, while his stagnates or falls.
As he sees their results, he'll either come around and want help, or get frustrated and want to quit. That's when you go back to him and ask if he really wants to help and get his own scores up as well.
In short, once he sees his teammates' scores go up, he'll want help. But he has to WANT it first, so he has to see how others are improving, while he isn't improving.
BL.