2007-08: One of the top goaltenders in the QMJHL last season, Cousineau led his team to the second best record in the league. Unfortunately for him and the Drakkar, they were ousted in five games by Rimouski in the first round of the QMJHL playoffs. Cousineau finished the season 34-19 with a .903 save percentage and a 2.81 goals against average.
2008-09: Split the season between the Baie-Comeau Drakkar and The Drummondville Voltigeurs. For Baei-Comeau, he posted a 9-20-5 record, .886 save percentage, and 3.77 GAA. With Drummondville however, he posted a 12-3-1 record, .904 save percentage, and a 2.42 GAA.
2009-10: split the season between the Prince Edward Island Rocket and the Saint John Sea Dogs. For the Rocket he posted a 10-14 record, .908 save percentage, and 3.2 GAA. For the Sea Dogs he registered a 15-5 record, 2.36 GAA, and .914 save percentage. He also finished the season with 4 shutouts.
2010-11: Cousineau skated in 44 games for ECHL Elmira as a first-year pro. He finished with a 21-21 record and posted a 3.23 GAA and .898 save percentage. Cousineau appeared in all four playoffs games for the Jackals and was 1-2 with a 1.91 GAA and .938 save percentage.
2011-12: Cousineau played in three different leagues in his second pro season – seeing his most extensive action with the Allen Americans in the Central Hockey League. He spent six games with the Ducks AHL affiliate Syracuse in January and February and was 3-2 with a a 3.32 goals against and .904 save percentage. He skated in one November game with ECHL Elmira, stopping 29 of 33 shots in a 4-3 loss to the Trenton Titans. Cousineau and minor league veteran Rejean Beauchemin split the goaltending duties for Allen. Cousineau was 16-8 with four losses in overtime in 25 games and had a 2.53 goals against with a .918 save percentage. Allen finished second in the Berry Division. Cousineau played in 4 of 6 playoff games in the series with Texas and was 1-3 with a 2.09 goals against and .924 save percentage. He was re-signed by Anaheim to a one-year contract in July 2012.
Cousineau has drawn praise for his competitiveness and receptiveness to instruction. He is a butterfly-goalie with solid poise between the pipes. He seems to have taken a step backward on his path to the NHL, as he has spent this year playing in the low-profile Central Hockey League.
Cousineau may soon fall to the same fate as other goalies in the Anaheim organization recently as the Ducks reorganize their goaltending stable. From the trade deadline to the start of the 2011-2012 season, the Ducks brought in five new goalies, four of whom are still in the organization. His NHL future remains cloudy at best.