This is a movie I watched recently https://www.amazon.com/Russian-Five-Sergei-Fedorov/dp/B07QX188CY/
By Tom Jelinek
It's free on Amazon Prime, and worth your time, if you can access it.
It describes the formation of the all-Russian line by Detroit, through the Cup win, the career ending injury to Konstantinov, and the repeat cup win. Brendan Shanahan was there for the cups, too. That's relevant, because the themes sound awfully familiar.
They put together this Russian line, and they were so skilled, they always had the puck. But come playoffs, they'd shrink against tough physical teams, most notably Colorado, where Claude Lemieux's cheap shot wilted their wills, and they lost, again. They didn't win until they grew out of their timidity, and Konstantinov did a credible impersonation of Bob Probert in key games. All the key players had to raise the physical element substantially, to prevent from being intimidated out of the prize.
I don't want to bias anyone too much, but you all think for yourselves, so tell me if you agree with my analysis or not: That was a different time - the only line in the league to play Russian style hockey, so they could indeed dominate with puck possession. Today, with everyone playing a possession game, nobody will ever again have that kind of possession advantage over anyone else. What you do without the puck now matters again, because you will be without the puck for 40-60% of the time. Pretending you can win by having 80% puck possession is wishful thinking today, now that everyone is wise to the tactic. And in spite of their possession game, those teams did not win until they could show beyond a doubt they won't be pushed around and intimidated. Until they had that, they were lost in playoffs, regardless how well their regular season went. I find it curious that Shanahan was on that team, and saw the advantage of the possession game. It might be why he bought into Dubas' vision of building a modern version of that team, without realizing the league had adapted since then. And he's previously shown himself to be tone-deaf to the fact that the Wings of those pre-cap years opened the checkbook, and built an all-star team, that should have utterly dominated the league with their talent. That it took so long to finally win carries a second lesson, which he seems to have missed: Even with that skill quotient, they didn't manage to win until they learned to fight like junkyard dogs.