Morrison made his NHL debut in relief of Markkanen and stopped three of three shots in a losing effort. His first start gave Oilers fans some optimism that their goaltending issues were solved, as Morrison stopped 31 of 33 shots in a 5-2 win over the Colorado Avalanche.

The Oilers rotated between Morrison, Markkanen, and Conklin as a three-headed tandem with mixed results. Either Markkanen or Conklin would sit in the stands so that Morrison could be on the bench as the team’s shootout specialist. He would be brought into games after overtime came to an end just to play the shootout and stopped 18 of the 24 shootout shots he faced in his career.

Come trade deadline time, the Oilers shored up their goaltending by trading for Dwayne Roloson from the Minnesota Wild. Morrison wound up going on waivers to make room for Roloson and he was claimed by the Ottawa Senators. He posted an .882 save percentage over 25 games between the Oilers and Sens in 2005-06.

Morrison signed as a free agent with the Arizona Coyotes the following off-season. He played four games with the team in October of 2006, was waived after allowing 13 goals on 62 shots, and spent the rest of the year between the AHL and ECHL. Morrison played three more professional seasons before retiring in 2010.