More Power in Sports?

Power has become more and more obvious in the sports world. Aside from contract negotiations such as Derek Jeter, things like trade requests can exemplify power as well. This power is shown by guys such as Randy Moss, former New England Patriot, and Minnesota Viking and now wide receiver for the Tennessee Titans. Randy Moss expressed his disliking towards playing in New England, and expressed how he felt like an outcast of sorts who was disliked by members of the organization and coaching staff. He made these remarks in a post-game interview. Within the week, he had been released by the Patriots. A similar scenario happened with the Vikings when after a game, moss stated that he missed the players on the Patriots, as well as head coach Bill Belichick, and later found himself a member of the Tennessee Titans. The question remains, do athletes have too much power? They are constantly expressing their disliking with their current situation or contract, and often succeed to get a change. Should they be allowed to badmouth their teams? Should they be able to request trades or demand more money? Or should they just play the game and shut their mouths?