With Sheldon Keefe's Firing, Martin St. Louis Is NHL's 6th-Longest Tenured Coach

After Toronto Maple Leafs head coach Sheldon Keefe was fired on Thursday, Montreal Canadiens head coach Martin St. Louis became the sixth longest-tenured bench boss in the NHL. Who is ahead of him and when should St. Louis start worrying about his job? When the Maple Leafs announced Keefe had been relieved of his duties yesterday morning, they knocked off the fifth longest-tenured coach in the league.