 The proposed arrangement fell through, and with the continuing franchise difficulties, the NHL called off the 1976–77 expansion.The Spurs then elected to move to the World Hockey Association (WHA) for the 1975–76 season, but Denver fans did not consider the WHA a major league, and stayed away in droves.By December, rumors that the NHL was preparing to move the Seals or Kansas City Scouts to Denver led Mullenix to conclude he could not survive in Denver.