In his role as Assistant General Manager, Dubas held multiple responsibilities including player personnel, managing the club's player development department and farm system, managing the organizations Research & Development department, and overseeing the organization's top prospects as General Manager of the Maple Leafs' AHL affiliate, the Toronto Marlies. This past season, the Marlies were awarded the Macgregor Kilpatrick Trophy as AHL regular season champions with their 54-18-2-2 record (112 points). It was their second such honour in the past three seasons. Toronto reached 50 wins this season for the third time in franchise history (2007-08, 2015-16) and set the League record for most road wins in a season (30). In his four seasons as General Manager, the Marlies have a record of 190-90-20-4 and have developed eight members of the 2017-18 Toronto Maple Leafs final roster (Connor Brown, Connor Carrick, Travis Dermott, Zach Hyman, Andreas Johnsson, Kasperi Kapanen, Josh Leivo and William Nylander).
Before joining the Maple Leafs, Dubas served as General Manager of the Sault Ste. Marie Greyhounds in the Ontario Hockey League for three seasons from 2011-12 to 2013-14. During his tenure, his teams finished with an overall record of 109-76-7-12, which included two post-season berths and a West Division title in 2013-14.
At the time of his hiring by the Greyhounds, the Sports Management Graduate from Brock University (Dean's List honours) became the second youngest General Manager in OHL history at the age of 25. From 2011 through 2014, the Greyhounds had 14 players drafted to the National Hockey League; second most of all OHL teams over that span.
In 2015, Dubas was recognized by Forbes Magazine as one of the sports industry's brightest young stars in their annual Top 30 Under 30 in Sports list. He was also honoured with the Brock University Distinguished Young Alumni Award in March of 2015.
Dubas, 32, and his wife, Shannon, have one son.
