In the off-season, O'Brien exited the hockey business and Renfrew exited the league. This season, the league dropped the 'rover' position, changing the game to six-man hockey, although other leagues would hold on to seven-man play into the 1920s. Attempts would be made to reintroduce seven-man hockey in subsequent years but were unsuccessful. While the league delayed its schedule to try to accommodate the Toronto teams, who were waiting for the Arena Gardens' completion, in the end the league played with only four teams. In that same off-season, the Patrick brothers built two arenas in Vancouver and Victoria and formed the Pacific Coast Hockey Association (PCHA). The PCHA exploited the low pay of the NHA teams to raid the teams for players. Quebec won the league championship, winning its first Stanley Cup, defending it successfully against Moncton. Despite the raids by the PCHA, the NHA allowed a player-organized team of all-stars to play an exhibition series out west against the PCHA after the season. Some of the NHA players, notably Cyclone Taylor would be enticed to join the PCHA in the following season.