He doesn't do anything well, except supposedly communicate with the group well, but yet, we have examples of that not happening (Seabrook issue, and another one that I can't recall off the top of my head).
He puts the line blender in full gear, even when the lines are clicking. (Why break up the Kubalik/Saad/Toews line?), he isn't a great line matching coach, he switched the system from a successful EDM series, to a more defensive structure, when the team isn't a defensive team, and he doesn't get the most out of his players. People say he is good with young players.....who? I feel like Dach did most of his maturing himself, Nylander still sucks, Boqvist didn't get better, Debrincat and Strome regressed hard. Koekkoek progressed, and Kubalik came around, but who else?
I don't see much upside here, I'm OK with giving him another year I guess, but I'd prefer Gallant.