Hello Chester, which is your level?
I don't know which is the highest manager level in the game, maybe it is smaller than 50 as you said, but it's very dificult to know.
In my server the highest manager is level 46, but he changed his team (I will never understand this, he had the best team with a lot of diference and he won every year 2 or 3 titles) and he is in a league level 29 now.