Pletchers Demise

Pletcher is the most successful trainer in the game today. But every trainer always comes down from the top. Pletcher is still young and has many more years of training to go. But what will be the reason for his demise? Lukas was the best there was in the 80's and 90's and we see where he is at today. So, what do you think will be the cause of Pletcher's fall? Like Lukas, I think once is assistants go on their own then he will hurt a little. I also think that perhaps burn out will play a role as well. What do you guys and gals think.