Imagine being in the same room, or on the same team, however they choose to see it, with others on the same side
who see you as an idiot. Plus with one of them having told you, even if only indirectly, that "You don't know shit."
The coach has problems.
It was Plato who said, “He, O men, is the wisest, who like Socrates, knows that his wisdom is in truth worth nothing”