Gregor Townsend insists he is happy to hand over the Scotland number 10 jersey full-time to team-mate Chris Paterson.
Townsend is content at centre for now
Paterson played for the Scots at fly-half for the first time in his career in the 22-20 win over Fiji, replacing Townsend, who had originally been Scotland's first-choice number 10.
But Townsend said: "I've told Chris the jersey is his if he carries on playing like that.
"Considering the pressure we were under, I thought he was outstanding."
Paterson keeps his place at fly-half for the game against Australia on Saturday, with Townsend still at outside centre.
Australia, as hosts and defending champions, are heavily tipped to overwhelm the Scots, who have not beaten the Wallabies for 21 years.
But Townsend believes pre-match billings count for nothing in the tournament.
Already Wales came close to stunning New Zealand, only losing 53-37 despite fielding a second-string line-up, while Australia only edged out Ireland 17-16.
"Those two games have really inspired us," he said. "Wales in particular were in a similar situation to the one we are supposed to be in this week.
"They were expected to lose by 50 points and ended up scoring nearly 40 against one of the best sides in the world.
"Perhaps our attitude would have been different if the big teams had been destroying the small teams but we don't think we are going to lose."
Australia coach Eddie Jones has gone for a different tack by naming former league star Lote Tuqiri instead of Joe Roff - a "selection surprise" to Townsend.
Meanwhile, Stirling Mortlock replaces Matt Burke at centre.
But whatever the selection, Townsend added: "We are going to give it our best shot."