Just as Alex Ferguson proved everyone wrong in 1998 when he won the Premier League with kids, Deans could do the same at the World Cup. The Wallabies' greatest weapon is their youthful exuberance.
Will Genia, Quade Cooper, James O'Connor and Kurtley Beale are preposterously young yet disproportionately experienced, with a surprising number of test caps accrued. Deans has nurtured them, showing scant regard for the senior professionals who stood in their way.
Matt Giteau, Stirling Mortlock and Lote Tuqiri may all have made the World Cup under softer regimes. Not on Deans' watch. Sentiment hasn't been a hindrance and it is testament to the cold calculations of the coach that his selections in 2011 induce only excitment rather than bewilderment.
There is no griping across the ditch about who is not involved. Deans has a team the nation believes in and the victory in Hong Kong last year obviously pulled a cork out mentally.
A few weeks later they destroyed France 59-16 in a performance that was frightening. The backs were untouchable which might explain why Ma'a Nonu said at the end of the All Blacks' November tour that they no longer had the best backline in world rugby. The Wallabies, in his opinion, had the edge being a potent mix of ball players and strike runners.
The Wallabies forward pack will never win global respect. They still can't scrum with the best and there isn't a vicious type among them. It makes them vulnerable against the Boks and England because, even though the Wallabies know what is coming, they are not always able to cope.
But against the All Blacks, their weaknesses are easier to protect. The All Blacks prefer playing higher-risk rugby with tackled and turnover ball being the key contests. That's what the Wallabies want, too. They have an excellent openside in David Pocock and a loose trio that can effectively counter-ruck and poach. Their tight five can survive this type of contest.
Deans knows the All Blacks can't resist the lure of an all-out attacking contest and he's confident his Wallabies have the edge.