nope - they won't be as dominant or dangerous, but only for a short while, even if they did loose Gilly or Dizzy. Bichel would replace Dizzy & he is as good as most of the best of the rest. Lehman would open with Hayden & Campbell would replace Gilly behind the stumps - just look what that line up did to Sri Lanka tonight!!!!!
Australia will still be dominant post the WC because they are not like to be loosing any more players to age possibly until the next WC!!!!! During this time other players will be given further opportunities to state their case for selection into their OD & Test teams.
So what if their current squad are mostly in their early 30's - look at how they are dominating!!!!! Hayden, Langer & Lehman have all had their careers re started post 30!!!!
The big thing in the Aussies favour IMO is not their talent pool, but what they do with it! Their Acadamy & domestic game mean that players are not over exposed at State level & are hungery to do well. The Aussie selectors are even less likely to pick a player on 1 season's form unless forced to re injuries (see how long Lehman had to wait in the wings), and this makes them even hungrier for success when they are given the opportunity. Players like Mayher, Hogg, Hussey, Blewett, Clarke, Katich, Bracken, Slater, Kasprowicz, Bichel, Campbell etc would all start for other teams, yet will still have to wait b4 getting any chance to break into this Aussie side. Just look at the record of the Aus '
A' sides over recent years both Home & Away.
Finally there is the high value placed upon their 'baggy green' - the importance of which is something neither the selectors nor the players take likely.