Electing to pursue an NHL career, Lumley eventually played parts of nine seasons with the Canadiens, Edmonton Oilers and Hartford Whalers, winning the Stanley Cup on two occasions 1984 and 1985 with the Edmonton Oilers.
Lumley chose to play in the NHL, spending several seasons with the Canadiens, Edmonton Oilers, and Hartford Whalers. He won the Stanley Cup twice—once in 1984 and again in 1985—with the Edmonton Oilers.