It is easy to say that because of the cascade of events that happened in Ryan Leafs life that we were able to see unfold before us.  But emotions can be controled and often it is the people around you and the circumstances that help you control them.
We have no way of knowing.  What I do know is that the Charges sucked plenty after he was gone. 
It was easy to say that about two weeks into his rookie season, when reports started surfacing about Ryan snapping at reporters and teammates. I didn't need to watch his painkiller addiction and amateur crime spree adventures to tell me what I already knew.