Mike Sullivan was fired by the Penguins and already has the Bruins and the Rangers knocking on his door. Where could he go?

The Pittsburgh Penguins did what many expected Monday morning, parting ways with coach Mike Sullivan after more than nine years on the job.

The Pittsburgh Penguins are about to embark on a coaching search for the first time in a decade. While the team is in transition — that’s the term Penguins president and general manager Kyle Dubas prefers,