That's telling. I had to look up haughty just to be sure since it's not used much.
"Arrogantly superior and disdainful"
That kind of me-first act can't be accepted by team leadership. When one of your team leaders pulls that, it spreads like wildfire. I'm sure they tried to work with him on it. The players may not like the move, but they'll respect the consistent demand for team unity.
Someone speculated that this may have been a strategy to get Sitton more money now rather than risking another year of banging in the trenches on an already beat up body. If it was it worked.