Wallabies assistant coach Stephen Larkham believes his team's healthy blend of experience and youth will stand them in good stead in Sunday's quarter-final against Scotland at Twickenham.
In the build-up to the fixture much has been made of the fact that Stephen Moore and Matt Giteau will join the 100 Test club, adding to the wealth of experience that is already provided by the Adam Ashley-Cooper, who has competed in 111 international matches for Australia.
Larkham himself, albeit not in a playing capacity, adds to the Wallaby experience with the 102 Test caps that he has behind his name.
The Wallabies have more than enough old hats at their disposal, as they prepare for one of the more daunting assignments at a World Cup – a quarter-final against a home nation at Twickenham.
"There's a number of ways to look at experience. You've got Dean Mumm who hasn't got the same amount of caps but he's certainly played over here," said Larkham, whose influence on the Australian attack has been apparent throughout this year's campaign.
"And then you've your experience in terms of test match caps. I think coming into the tournament we've got a really good balance of age and experience.
"It's not just a team that's a little bit older and therefore more experienced. I think we've got the right number of experienced guys, the right number of older guys and the right number of younger enthusiastic guys.