In 1989–90, Allison was hired by the
Virginia Lancers of the
ECHL, finishing with a record of 36–18–6, good for third in the league, before losing in the first round of the playoffs. In 1990–91, Allison moved to the
Albany Choppers of the
International Hockey League (IHL), where the club had a 22–30–3 record before suspending operations. Allison then finished the 1990–91 season coaching the
Richmond Renegades of the
ECHL, where they finished with a 29–29–6 record and lost in the first round of the playoffs. Allison returned as coach of the Renegades in 1991–92, leading the club to a 30–27–7 record, before falling in the second round of the playoffs. Allison then moved to the
Kingston Frontenacs of the
Ontario Hockey League (OHL) for the 1992–93 season, leading the Fronts to a 36–19–11 record and the third round of the playoffs before losing to the
Peterborough Petes. He returned to the Frontenacs in 1993–94, posting a 30–28–8 record, but lost to the
Belleville Bulls in the first round. Allison was hired by the Ottawa Senators organization in 1994 as head coach of their top farm team, the
Prince Edward Island Senators of the AHL. In 1994–95, he led them to a 41–31–8 record. Allison began the 1995–96 season with PEI, leading them to a 10–11–2 record through 23 games. When the parent team in Ottawa fired head coach
Rick Bowness in late 1995, Allison was selected as his replacement. He was fired after 27 games, finishing with a record of 2–22–3, and was replaced by
Jacques Martin. In 1996–97, Allison became coach of the
Grand Rapids Griffins and led them to a 40–30–12 record before losing in the first round. In 1997–98 he returned to Grand Rapids and led the team to a 30–25–7 record before being replaced with 20 games left in the season. Allison's next head coaching job came in 1999–2000 with the
Fort Wayne Komets of the
United Hockey League (UHL), leading them to a 40–27–7 record and to the third round of the playoffs. He returned to the IHL as coach of the
Milwaukee Admirals, the
Nashville Predators' IHL affiliate, leading the team to a 42–33–7 record, but losing in the first round of the playoffs. He moved with the club to the
American Hockey League (AHL) in 2001–02, but missed the playoffs with a 30–35–10–5 record. Allison then took a few years away from the professional ranks before taking over the
Iowa Stars of the AHL, the
Dallas Stars' affiliate, leading them to a 41–31–1–7 record before losing in the first round of the playoffs in his first season with the franchise. In between, he spent time behind the bench of the
Fort Frances,
Ontario-based
Borderland Thunder of the
Superior International Junior Hockey League. Allison was named head coach of the AHL's
Peoria Rivermen on June 13, 2012, replacing
Jared Bednar as head coach. He was an assistant coach of the AHL's
Chicago Wolves for the 2013–14 AHL season. Allison became the head coach and general manager of the
Des Moines Buccaneers in the
United States Hockey League in 2014. He was relieved after the team finished last in the Western Conference in the
2017–18 season. Allison became the fourth head coach in the history of the North American Hockey League's Fairbanks Ice Dogs in January 2022. He compiled a 41–33–7–2 record in 83 regular season games, and 2–3 mark in 5 playoff appearances as the head coach of the Fairbanks Ice Dogs before leaving the team on April 3, 2023, in "an amicable parting." ==Personal==