This is bout personal drivers and those vary from person to person almost as widely as opinions and they also evolve as a person progresses through their career goals.

Sean always seemed more like a chess player to me, played more for the thrill of the chase than the victory. With Drew he had the one piece that left him comfortable enough to experiment everywhere else, without Drew he was back to player development and something tells me that's not what kept him interested. Sean's happy place is plotting and scheming and I suspect the 'right fit' for him is a place with all the pieces and the freedom to plot and scheme.