The 1979–80 Toronto Maple Leafs season was the Toronto Maple Leafs' 62nd season of the franchise, 52nd season as the Maple Leafs. In July 1979, Leafs owner Harold Ballard brought back Punch Imlach, a longtime friend, as general manager. Imlach traded Lanny McDonald to undermine team captain Darryl Sittler's influence on the team. The McDonald trade sent the Leafs into a downward spiral. They finished five games under .500 and only made the playoffs due to the presence of the Quebec Nordiques, a refugee from the WHA, in the Adams Division. __TOC__