Perhaps your manager sending you out to spend 90mins getting battered by a tic team who had not that long b4 been done by St Mirren with the plan being to get a 0-0 draw would put the seeds of mutiny on anyones mind.
It certainly would for me even more so when with 3 mins left, plan A is fucked and yer breathing out yer arse yer told to throw the kitchen sink at the best defence in the league who are so well rested they could have set up deck chairs in their own penalty area.
Getting outclassed by superior opponents is one thing.
For your manager to tell you to let them walk over you on your home patch is another. He doesnt believe in you, so why should you believe in him?