This is going to come off more dickish than I intend, but I'm saying it anyway....
BREAKING NEWS: Embattled coach believes system is fine, players are the problem.
More seriously, I have a theory that relatively small systematic differences actually produce large differences on the ice. I understand that hockey isn't football, so the degree of schematic differentiation can only be so high...but I also have a hard time believing Darryl Sutter is particularly emotionally inspiring, and that's why he has had such better results than his predecessor. There's a lot of evidence for team-level and individual-level differences in performance after coaching changes, and I am not even a little convinced that it's mostly because of getting player buy-in (though buy-in of course matters).