Haven't you noticed that about 7 years ago heavyweight enforcers started to disappear from the NHL and over the last 3 years middle weight "enforcers" have followed suit? Haven't you noticed that slow big tough stay at home defenders are less prevalent now? Haven't you noticed that teams' 3rd and 4th liners are starting to have skilled guys rather than grinders and checkers? Almost every team in the NHL knows that skill trumps toughness in today's NHL (and it's not going back). It started with the salary cap which forced teams to really evaluate whether or not those "tough" players were worth their money and now the analytics movement is putting the nail in the coffin for many of those types of players.
Every time I hear "team toughness" I cringe because it is the last thing we should be focusing on if we want to win. I know some people love big hits and fights and scrums and that's fine, but what I really care about is winning and to do that we should be focusing on skill. And skill in today's game is comprised of speed, vision, hockey IQ, puck-handling, passing not hitting, fighting, overpowering as it was 20 years ago.