You think John Wooden was passive? Uh no. He had standards and rules, if you didn't follow them, you were out.
Phil Jackson, yeah, he was calm in his later years, but how much yelling was he going to do with those teams? You think he was going to get red with Michael Jordan? Plus, the NBA is full of millionaire stars that have agents. You don't think they would put up with a coach ripping them during a game, do you?
But the biggest thing is, the game is a thousand times different now than it was 60 years ago. Back then, there were. like 4 programs that were any good and the 2 handed set shot was a thing. Today, the game is far more physical and athletic. You better have an edge to your game, or you're not winning crap.