After leading the Toronto Marlies to a Calder Cup, John Gruden is expected to work on improving the Maple Leafs’ defense as the NHL’s club new assistant coach.
https://www.thestar.com/sports/leafs/leafs-assistant-john-gruden-has-worked-with-head-coach-jim-hiller-before-hes–a-great-hockey-mind/article_c7f42e41-5d53-4e09-bb22-c4c9baa98684.html