One of the biggest mistakes that a coach can make is to focus solely on the physical development of their athletes. Success in most sports depends on much more than raw athletic ability. I’m certainly not the only coach who has seen athletes with natural talent who never made it to the top. I’m also not the only coach who has seen athletes with lesser ability who defied the odds and achieved more than anyone could have ever guessed. The natural question therefore is what leads some athletes to failure, yet others to success.