It's not just last game. There has been a consistent lack of structure, consistent lack of preparedness and consistent lack of accountability. I firmly believe that when this team is playing well, it's simply because the players are taking over the game and making things happen. They can do that now because of the skill. But that skill level is hard to bring night in and night out due to fatigue etc. So that's when you rely on structure and players being worried about being held accountable. I have been watching DJ for years now and I just don't see that. It really isn't a cop out. I wholeheartedly disagree.
But you are right that it isn't that simple and blaming DJ and replacing him isn't the panacea that people think it will be. The players are on the ice, not DJ. I'm sure he isn't telling them to coast and screw around and not complete their checks. Better hockey minds than mine need to take charge.
I think this could even possibly be a good situation where an experienced coach is brought in to help DJ. Another voice, not just some dinosaur but a real hockey mind to help with the structure and communication on accountability with the players.