of course he will lose that drive, that is why no QB has ever won multiple Super Bowls -- after a QB works hard to win one they simply lose interest. empirical evidence certainly supports your fear and you have a valid reason to be concerned. our only hope is that he never wins a Super Bowl, that way he always is driven to want to win.
I knew you would agree. our only hope is for Sanchez not to win a Super Bowl because clearly our greater interest is that he only wants to win one and stays driven to do so. he can't both win a Super Bowl and stay driven to do so, so if our concern is in his drive, we must root against him to actually win it.
Nothing better than dangling a carrot. Clearly to keep Sanchez hungry wanting to win a Super Bowl Championship, the Jets should never let him win one..