Pretty much every guy on that list has a strong track record over multiple years. I would imagine they get offers from's all the time to run money and with the current environment at investment banks, I doubt they are able to match what the HF's are willing to offer.
I'm guessing the people that dofor a very long time have a lower risk tolerance than the guys that switch over to the buy side? Am I missing something here?
Btw, if a top rated research analyst made the switch to the buy side, how much money can they realistically expect to be running?