Whats the real return on investment for hiring a triathlon coach, and at what point can an athlete expect to see significant gains in their performance, assuming theyre already putting in a substantial amount of training time and have a solid understanding of the fundamentals of the sport. Is it really necessary to shell out thousands of dollars for personalized coaching, or can an athlete achieve similar results through diligent self-study and attention to their own data and progress. Wheres the line between investing in a coach and simply throwing money at a problem that could be solved through hard work and dedication. Are there any specific scenarios or types of athletes for whom hiring a coach is a clear no-brainer, and if so, what are the key factors that make coaching a worthwhile investment for them.