If not liking your boss leads you to half ass your effort then that says a lot about your character full stop.
I also don't believe the conspiracy theories in these threads that the team has quit on their GM.
I'm not sure there's an instance of players quitting on a GM in recorded history.
Now, Benning plays a part in setting a culture that is toxic and a toxic culture erodes trust, but if you think it's a conscious. decision, then you don't understand a single thing about the mentality of elite athletes.