Manager is such a weird gig. Only 30 of them at a time, everyone knows your job history, and you can get fired Billy Martin-x times and still get hired again.
If you think it is weird in baseball, you should follow NHL coaching moves. You're not even a real coach until you've coached at least 4 teams, and you're a cagey veteran if you last more than 18 months with a single team.
EDIT: To highlight how weird it is - last year the Vegas Golden Knights fired Bruce Cassidy with just 8 games left in the season, despite being pretty firmly in a playoff spot. Cassidy won the Stanley Cup with Vegas in his first year as coach, and had led them back to the playoffs each season. Enter veteran coach and professional rabble-rouser John Tortorella as interim coach. They finish the season 7-0-1, then cruise back to the Cup finals before ultimately falling to the unstoppable Hurricanes.
So they asked Tortorella to come back, right? Of course not. They hired Ryan Craig into his first NHL head coaching job, for a veteran roster with perennial sights on the Cup. Makes total sense. Meanwhile Tortorella didn't get a different coaching gig, and Cassidy is also considering his next options.