On April 28, the Penguins announced that the team and Mike Sullivan had agreed to part ways after nine seasons. Sullivan left the team as the winningest coach with 409 regular-season wins, as well as being the bench boss for back-to-back Stanley Cup championships in 2016 and 2017.

In a surprise move, the Pittsburgh Penguins on Wednesday hired New York Rangers assistant Dan Muse as their new head coach, replacing Mike Sullivan, over Mitch Love and D.J. Smith, who were perceived as the favorites for the job.

The Pittsburgh Penguins named Dan Muse as the 23rd head coach in franchise history on Wednesday. He replaces Mike Sullivan, who had been head coach for nine-plus seasons before he and the team agreed to part ways. Muse had been an assistant coach with the New York Rangers, where Sullivan had been hired.