I think the ideal coaching style these days is a hybrid -- a coach who gives you tough love and pushes you hard to make you a better player, but one you know has your back 100%. Someone like Brind'Amour strikes me as that type. All those players seemingly love to play for him and would do anything he asks of them.
The issue with Torts isn't his ability to squeeze what he can out of a team. He's proven in his many different stops he is successful in that. The issue is that his bombastic style wears thin and his shelf life barely lasts beyond 5 years. He's in year 2 with the Flyers and already seeing massive improvement over last year. Will he be around though in years 5/6/7 when they may be legitimate Cup contenders? That remains to be seen.