FILE - Montreal Canadiens coach Dominique Ducharme keeps an eye on the action, as do Paul Byron (41) and Phillip Danault (24) during the the team's NHL hockey game against the Ottawa Senators in Montreal, in this Tuesday, March 2, 2021, file photo. The four coaches left in the NHL playoffs have connections to each other, but they all took different paths to get to this point. (Ryan Remiorz/The Canadian Press via AP)