While a member of the Montreal Canadiens, Coutu was one of the players hospitalized during the cancelled 1919 Stanley Cup series, won the Stanley Cup in the 1923–24 NHL season, and was captain of the team in the 1925–26 NHL season. After his eviction from the NHL, Coutu played a total of four years in the Canadian-American Hockey League (C-AHL) and American Hockey Association (AHA), then coached the C-AHL's Providence Reds.