 The Americans named Green their head coach for the 1927–28 NHL season, and finished the season outside of the playoffs with a record of 11–27–6.He left the NHL to coach the Duluth Hornets of the American Hockey Association for three seasons between 1928 and 1931, appearing in three games, and with the Tulsa Oilers in 1931–32.He coached the Hamilton Tigers' senior team for one season in 1932–33 before returning to Sudbury where he first opened a men's clothing store and in 1937, founded the Sudbury Golf Club with two partners.