The seven in-season changes are still four off the League record of 11 from the 2002-03 season, but it sends ripples through the coaching community when it includes three of the last four coaches who lost in the Stanley Cup Final.
"I don't think about that sort of stuff, but when a guy like the Gallant goes down it makes you think sometimes," Arizona Coyotes coach Rick Tocchet said. "I think the partnership with the general manager and the owner is huge. But as a coach you can't worry about that sort of stuff. I can't think that way of ever getting fired."
That's the common thread through all four coaches in the 2020 Honda NHL All-Star Game at Enterprise Center (Tocchet, Cassidy, Capitals coach Todd Reirden and Blues coach Craig Berube) -- focus on now and try your very best to not worry about what could be.
Cassidy, though, said what has happened in the coaching community this season has, at least in his mind, re-defined what job stability and security means.
"You used to have guys that probably could go 10 years," Cassidy said. "Now you go way back to the Al Arbours. He won, OK, but maybe even some other guys that maybe didn't win as much could stay six, seven, eight years. Nowadays, even the best, you might make it through two contracts, so that's six years."
Tampa Bay Lightning coach Jon Cooper is the longest-tenured coach in the NHL, having been hired on March 25, 2013. He's in his sixth full season in the same job.
Cassidy, hired by the Bruins on Feb. 7, 2016, is in his fourth full season, making him the sixth most tenured coach in the League to date and one of nine who have been with their current team for at least three full seasons.
There are 14 coaches who have been in their current job for less than a year.
"But I guess for guys like myself, as long as they keep re-hiring you, you're OK with it," Cassidy said. "When they stop re-hiring you, when you've aged out, that's when I won't be a big fan of it."