Self-esteem, performance and training

Every day I realize more and more how the self-esteem of the athletes is challenge during the races. It happens for the high expectations that those who have high commitment have toward their performances. This does not mean that athletes are individuals with a low level of self-esteem.  The situations they face require they test every time the will to do their best. Only the musicians live in situations of this kind or students who want to excel. If these are the circumstances that athletes have to face, it’s necessary that the daily workout is different than in the past, because it’s one thing is to learn/improve the technique, but something very different is knowing replicate during competitions, when the emotional tension can destroy even the best coaching. Are the coaches aware of this difference  and are the athletes willing to get more involved ?