It is still wild that a coach who essentially done nothing for a “win now” team for 6 seasons would get another shot.
Back to back cups buys a long leash, especially when you maintain the respect of the core.
The coaches who have won multiple cups in the cap era are Sullivan, Jon Cooper, Joel Quenneville and Darryl Sutter.
Sutter outright missed the playoffs in two of the three years after winning his second cup with LA. Plus, his abrasive style has a shorter shelf life.
Quenneville lasted three seasons plus a couple months of a fourth after Chicago's last cup. He was largely fired as a scapegoat for Stan Bowman's mismanagement after the last cup. Plus, given all we know now about Chicago, the place was pretty dysfunctional around that time.
Cooper has the best job security in the league.
Bruce Cassidy made it twice and won once. He was fired in Boston because he lost the core. If David Krejci would rather leave the NHL than play for you, that's a problem.
Peter Laviolette won once and lost twice, but his Capitals tenure was roundly criticized by Kuzy and others.
So, there's a theme with those who have been fired after winning cups -- they lost the core of their respective teams.
I think it also helps Sullivan that there are plausible excuses for many of the Pens' end results of late. They clearly ran out of gas in 2018 vs the Caps. I think the sweep vs the Isles in 2019 should be a knock against Sullivan. I think the bubble in 2020 is viewed as a crapshoot (see Montreal's run). You have Jarry imploding with no legit back-up in 2021 vs the Isles and Dominique in 2022 vs the Rangers.
I blame last year on Hextall, but for arguments sake we can blame Sullivan.
That's really only two years that he should shoulder most of the blame - 2019 and 2023.
I cannot blame him for the goalie fiascos in 2021 and 2022. Dustin Tokarski wasn't going to do anything in 2021, and Louis Domingue realistically wasn't much of a better option in 2022. I know we saw Adin Hill elevate Vegas last year, but Hill is better than Domingue and Tokarski, and Vegas was better equipped to insulate him by being able to roll four lines and having a deeper defense group.
So, in context, I don't think Sullivan's longevity is all that wild.