Among active head coaches, only Tampa Bay's Jon Cooper has been behind the same team's bench for longer than Mike Sullivan.
Occupier of the position since the firing of Mike Johnston in December 2015, Sullivan is one of the rare examples of head coaches who have not only stayed with the same NHL franchise for an extended period of time, but survived through multiple front office changes.
Excluding an 11-day stint where Patrik Allvin served as the Penguins' interim general manager after Jim Rutherford resigned, Sullivan is set to operate this season under a third different regime, this one led by newly hired president of hockey operations Kyle Dubas. Eddie Olczyk, who coached and played for the Penguins and now commentates on TNT and Seattle Kraken games, is quick to point out the rarity of this occurrence.