It has been an offseason of change for the Toronto Maple Leafs, who not only dismissed general manager Brad Treliving late in the regular season on March 30, but they’ve also hired former Arizona Coyotes GM John Chayka as his replacement; his first major decision was the removal of head coach Craig Berube behind the Toronto bench, and the search for his replacement is underway.There will also be roster turnover, as is the case every season with …