The Leafs are constantly attacking on offense. Hard for the other team to score when one team as the puck all the time attacking on offense. Very entertaining brand of hockey.
Maintaining possession wins games. It's the most vital part of Mike Babcock's system. Defensive or offensive system, I will never understand how so many pro coaches think that willingly giving up possession, for any purpose, is a good idea. Outside of a PK of course.
Not sure how he's doing things in Montreal, but it was one of the things that killed me about CJ's system. The only way they changed lines was by dumping the puck into the defensive zone and peeling off. Why the hell you wouldn't keep a D-man in the defensive zone with the puck on his stick while everyone else changes out is still a mystery to me, and I scrutinized the system for years.