Australia’s problem is that rugby union has always been a minority sport there and doesn’t have the interest needed to sustain a national competition, especially with the lure of European rugby for their top players. Rugby league dominates in NSW and Queensland, Aussie Rules dominates in Victoria, South Australia, Western Australia and the Northern Territory. Cricket is strong everywhere and soccer is making increasing inroads everywhere.
Even in 2003, when Eddie Jones was coaching, at least three of their starting line up in the World Cup final - Rodgers, Sailor and Tuqiri had come from NRL in the previous couple of years.
The Qantas Wallabies do outstandingly well to consistently compete at the level they do.