When the Buffalo Sabres fired Lindy Ruff last month, they jettisoned the NHL's most senior coach.
Ruff had been behind the Sabres' bench since the 1997-98 season and had earned a reputation as a well-prepared and solid leader.
It might be ideal for him to take some time off and recharge his batteries, but Ruff is a hockey lifer and when an opportunity to jump back into coaching comes up, he probably won't hesitate to get back behind the bench.
There are some teams with high expectations that may decide to change coaches at the end of the season if there are postseason failures.
There are other teams that are struggling now and that may push management to make a move sooner rather than later. Here's a look at five teams that could move quickly.