It is possible to tie so many threads into a single observation: Minor League mindset. Sure, Bednar has won championships at every level, but what works in the minors does not necessarily translate.
In the minors, if you get a top line of kids who grew into their bodies early, you can destroy the competition with just a single line.
In the minors, you can get away with a tight box PK. Very few opponents will have 90 mph slappers from the point. The current Avs PK is just too passive for the NHL, where every team has at least a pair of Dmen capable of that velocity.
The minors depend more on skill of players, whereas the NHL requires the coaching ability to turn on a dime, and react, in real time, to issues. A good coach manages assets, as opposed to letting them spoil.
I have come to grips with the fact that Bednar isn't going anywhere as he is just starting his extension. Still, I think he gets way too much credit. His system was an amazing minor-league system. His mentality was an excellent minor-league mindset. And the system WAS the strategic edge. To be honest, the Bednar model is great for a team happy to sniff wild card slots. Teams competing for the cup need to roll 4 lines. Those lines need to develop chemistry, not go through a blender. The teams need to know how to react and adjust within the game. These teams win face-offs, and effectively clear pucks.
The most aggravating thing is that Bednar probably has what it takes, somewhere deep inside. But he is stubborn. I'm not sure he will ever change his ways, and it might take a pink slip to wake him up.