LSCII
Cup driven
But isn't that coachable? Shouldn't that be something that an NHL head coach should be able to correct? You can't teach his scoring or shooting ability.
You're correct that you can't teach that release. But as for the other stuff, I'd assume they'd been coaching him up and telling him what they expected from him before he got moved and that them literally giving up on him was them realizing that he wasn't going to do what they wanted. He'd become too comfortable and assumed he had earned a spot and only worked hard when he wanted. That's really hard to see from a young guy. That sense of entitlement for very little NHL level production.