Mike Vrabel, who is one hell of an NFL coach and was one hell of an NFL player, says that he's hardest on his most talented and valuable players. Not only does that prove to the roster that Vrabs doesn't play favorites, it also shows the top dogs respecting the head coach. Next thing you know, a young guy gets out of line, Vrabs doesn't even need to worry about it....his vets, and most of the roster, will take care of the problem on their own.
Making meetings, doing your work, not sleeping on the job, hustling, etc....these aren't difficult rules to follow. I think Kenyan's point about the shaving was that the attention to detail was indicative of a proud franchise and culture.
Clearly, all of these basic duties went out the window under TLR. No one was held accountable. Why would the culture change?