The abnormality here is that England haven't been throwing the wickets away to Mitchell Johnson and what ever spin bowler Australia have since Warne. All other sides have been doing that and they've stopped doing it this series.
You've got batsmen who aren't performing who stay in the side (never happened in the last 15 years for Aus) and a captain who has no idea on how to captain a side that doesn't have McGrath and Warne doing it all for him.
In my view, Australia are entirely freaking lucky to A: Reduce England to 260 in the first innings and B: Have a partnership between Hussey and Haddin which put them so far ahead.
Realistically, there aren't too many positives to take from this except Hussey, Haddin and Siddle. There are huge question marks around Doherty, North, Johnson and lingering concerns around Clarke, Ponting's captaincy and whether Hilfenhaus is good enough at this level.
When have Australia had so many doubts about their side? Their best hope is that they find a new age Allan Border to rebuild it.
I'm under no illusion that there isn't doubts about this side. After this match, North absolutely shouldn't be there, and neither should Hilfenhaus. The only concern about Clarke should be his back, if it's fine, he'll score runs in Adelaide of that I have no doubt given the form he displayed in his last FC match. Pontings captaincy won't be that much of an issue if his bowlers actually do what they're supposed to. Doherty, question marks indeed, but no more or less than there would be from any other spinner that they seemingly pick from the lottery.
As for Johnson, see my post a few pages back. Calls for his head are premature imho. If he fails spectacularly in Adelaide, i may see it differently, but dropping him now would be a huge mistake for mine.
It's one thing to talk about making changes etc, but honestly, there's a total of about 2/3 players available for selection who have the potential to make this team better. Bollinger for Hilfenhaus definitely needs to happen, and would be a definite improvement. North has to be dropped, but can we honestly say that Usman/Smith are going to instantly improve the team. Whilst I hope they can, and think they probably would to a small degree, I'd be pleasantly surprised if they managed to average much more than 40 for the first part of their career.
Bottom line is, Australia isn't as good as it once was because we simply don't have the cattle.