Comeau began his coaching career with the Saginaw Gears during the 1981–82 IHL season, and the 1982–83 IHL season, until the team folded, acting as the player-coach and general manager. He became a full-time coach with the Calgary Wranglers for the 1983–84 WHL season. Comeau switched to the Saskatoon Blades for the 1984–85 WHL season, and stayed with the team for five seasons. He led Saskatoon to improved records in three successive seasons, reaching the third round of the playoffs in the 1986–87 WHL season. Comeau led Saskatoon to 47 wins and the east division title in the 1987–88 WHL season, and was awarded the Dunc McCallum Memorial Trophy as the WHL Coach of the Year. The Blades moved out of Saskatoon Arena during his fifth season, into the new Saskatchewan Place, and were scheduled to host the 1989 Memorial Cup. Comeau led Saskatoon to second place in the east division with 42 wins, and into the third round of the 1988–89 WHL season playoffs. At the 1989 Memorial Cup, Comeau's Blades won 5–3 over the Laval Titan, lost 3–2 to the Peterborough Petes, and won 5–4 over the Swift Current Broncos to reach a berth in the finals. Saskatoon was leading in the third period of the Memorial Cup championship game, but were defeated 4–3 in overtime by Swift Current. Comeau stepped down from his position with the Blades on August 10, 1989. Comeau was named director of hockey operations and head coach of the New Haven Nighthawks on August 11, 1989. In his first season coaching in the AHL, Comeau led the New Haven to seventh-place finish, and missed the playoffs. The following season, his team struggled again and Comeau became the first AHL coach to be fired mid-season in nearly six years, on November 29, 1990. Comeau took over as head coach of a struggling Winston-Salem Thunderbirds team in the East Coast Hockey League on January 12, 1991, but was unable to get his new team into the 1990-91 ECHL season playoffs. Comeau was hired as the first head coach for the expansion Tacoma Rockets in the WHL, on April 17, 1991. In his 1992–93 WHL season with Tacoma, he led the team to 45 wins, and won his second Dunc McCallum Memorial Trophy as WHL Coach of Year. He also received the Coach of the Year Award for the Canadian Hockey League in the same season. Comeau served five seasons total with the Rockets, four of those in Tacoma, and a fifth season being the team's first year as the Kelowna Rockets in the 1995–96 WHL season.
Comeau served as the executive director of the Sno-King Amateur Hockey Association in the Snohomish County and King County areas, from 1996 to 2000. He also worked as a scout with the Independent RHO Hockey Service, and coached the Pacific under-17 team at the 1999 USA Hockey Festival. He was hired as a part-time scout for the Atlanta Thrashers by Don Waddell, a former teammate on the Saginaw Gears. He scouted part-time in Western Canada and the United States from October 1998, until becoming a full-time scout in the same regions in June 2000. On July 9, 2003, he was named director of amateur scouting for the Thrashers. He remained in the same position with the organization when it became the second incarnation of the Winnipeg Jets in 2011. In 2015, Comeau stepped down from his position, but remained with the Jets as an amateur scout.
Personal life
Comeau was born March 1, 1952, in Edmonton, Alberta. His parents, Emile and Anita Comeau, moved to Ponoka and operated the localMassey Ferguson retailer. He played minor ice hockey in town and attended Ponoka Composite High School. He played shortstop on the Ponoka Royals fast-pitch softball club as a youth, and played semi-professional softball in summers.
