Um, you realize that most modern training is based on his methods, right? Charmichael (read: Armstrong) uses similar methods. Not everyone has the same potential or opportunuties, expecting someone to personally "win" to validate their methods is absurd on its face.
Especially when you take a step back and consider what we're looking for. We aren't looking for someone who is able to bring himself to his peak performance. We want someone who can bring another person to their full potential. That requires a much different skill set and the ability to do one does not necessarily translate to the other. To reinforce this, as far as I know, Max Testa has never ridden a bike. He certainly never competed.