Gagne, a right-handed shortstop, is considered to be among the best defensive players at his position in baseball among his contemporaries. Gagne finished his pro playing career with a batting average of .254. He hit 111 home runs and drove in more than 600 runs. After his retirement, he began coaching high school baseball. He lives in Massachusetts near his hometown. Gagne is now a member of the Minnesota Twins Hall of Fame.