If this is the reason, that is just damn stupid. Sit him a game and give him a good talking to, and also give him a shot to voice his thoughts to the coaching staff; never know, he might actually have some ideas on how he could be used.
Something similar happened to AJL. He voiced his displeasure and was gone quick. I wonder if there is any line of communication within the team or is it do what I say or your ass is done?