hmmmm
presently we dont have a clear understanding who they work only that they are better than what we had before which is level 10 or level 5 now.
but with that in hand, we know it can influence how we do our training and future plans.
you are in fact correct with top trainers falling to wrong hands, because if they mis manage themselves and the influence is so big, probably could rip a hole in themselves and they quit :D