My son is generally laid back. He likes to swim. He likes going to practice. He enjoys going to meets. He never complains about going to practice. He has been dying for the summer season to start with his club so he could get back in the pool. All of that being said. He NEVER hustles. I have seen it at practice. I have seen it at meets. I have been the good swim parent and kept my mouth shut (for the most part). But, his coach is now asking for help. She is worried that if she yells at him too much, he is going to want to quit. Has anyone had any success in this area, or some suggestions?