In 2015, Fisher left his role to join Gloucester, with Stephen being appointed head coach. In Larkhams's debut season as head coach, he led the Brumbies to the Semi-Final of the 2015 Super Rugby season, finishing sixth in the overall standings at the end of the regular season. The Brumbies finished with 9 out of 16 wins, which included 3 wins over South African opposition and 2 wins over New Zealand opposition. The season also included a 29–0 win over the Queensland Reds in Brisbane, to make the Brumbies the first team to have held a team scoreless twice against the same opponent. During the qualifier round, the Brumbies convincingly beat the Stormers in Cape Town 39–19, to set up an away semi-finals against first seeds Hurricanes. The Brumbies lost this match 29–9 to be eliminated from Champions contention.