This is surely old news, but I found it interesting, was a good professional article:
https://www.washingtonpost.com/news...s-nhl-teams-there-are-better-stats-available/
Its what I have been saying forever, about at the time we lost against LAK in the finals, there was a
shift in powers and teams started to be able to create more high danger scoring chances -- by risking possession, i.e. hurting their Corsi. Before that, if you just hanged on to the puck, drew penalties, threw it on the net when the other team was pinned down, odds were that you came out on top. But after it, if you take the puck to the net, really challenge Ds 1 on 1, fill up with Ds joining the rush, try to make small margin passes, you will score many goals, often more than 3 per night. The scale tilted over.
Its of course still a balance, and most certainly one we have erred on the wrong side of for long stretches. No doubt.
Its an interesting topic to follow, what really is the key here. What pays off best. Also, going a little deeper, it just seems like being able to do both would be far and away that best thing. I.e. literary to be able to take a lead and then protect that lead by keeping the puck within the team as much as possible.
Its really one of the things that makes hockey so interesting to follow. Its always changing. I started to follow hockey closely in the early 90s. There have been several fundamental changes in how the best teams play since then.