I would ask lil fotze2 what he would have done in the situation, use it as a teaching moment when it comes to team building/leading.. how would he have made the choices he made, but also compare what you would have done from a spectator perspective.
I think the most important part is for him to know that the failure was simply due to a person not having an open mind, asking for trusted input and that collaboration is how you build a proper team.... this will go further in his life than hockey and honestly wish I had someone in my life that had brought me down this path. Not to be angry with the coach but to try to understand how that coach might have got to that point (maybe he was the exact same kid that lost and never had someone to lead him through it)
Sorry if it sounds hippy dippy, but did a boatload of DMT last night and ugly cried about missing my mother and realised I was using anger towards her as it was easier than accepting the fact that I missed her *Insert Macho Guy.