Brumbies coaches Stephen Larkham and Laurie Fisher.

Brumbies coaches Stephen Larkham and Laurie Fisher. Photo: Jeffrey Chan

Stephen Larkham admits there's a risk Brumbies players may get mixed messages this Super Rugby season, with he and Laurie Fisher sharing coaching duties.

Head coach Larkham and director of coaching Fisher will split control down the middle following the departure of South African mentor Jake White, who last year took the Brumbies to the final.

Larkham will give players a final wrap-up of plans on game day, but Fisher will give the pre-match rev-up. At half-time, Larkham and defence coach Dan McKellar will address the group separately.

White's departure shouldn't make a difference to the technical coaching of the team, given that Larkham and Fisher already shared hands-on duties.

However, White was always the final authority for the players, and that's the void that needs to be filled.

The split-coaches method is aimed at ensuring the Brumbies don't become stale, but Larkham acknowledges he and Fisher will need to be on high alert for the potential to confuse their players.

''If you hear the same voice day in, day out, you tune out to it. So we can change things up that way,'' Larkham said.

''But the risk is, the message isn't clear.

''We have three coaches and … we have free-flowing conversation every day and make sure 99 per cent of the time we're on the same page before we … present to the team.''

NSW coach Michael Cheika predicted at Wednesday's Super Rugby launch that the Brumbies would play a more expansive style under one of the Wallabies' all-time attacking greats, but Larkham said things would stay much the same.

Larkham and prop Ben Alexander said Ben Mowen was still the best captain, despite announcing he would leave Australian rugby at season's end.

AAP