Not everybody wants to be hedge fund manager. Very successful traders that cannot trade huge positions trade for themselves only. Because they cannot profit from the size of a hedge fund as their system does not allow this, and second they take not 2 and 20% but 100%. If you watch how many funds can stay out of the red returns over a period of 10 years or more, it looks like these managers are not the toptraders but the subtop. Or they are real crooks like Madoff.That is why everyone wants to be a hedge fund manager.