Michael Cheika questioned Australia's attitude after they suffered a humiliating 42-8 hammering against New Zealand in the opening game of the Rugby Championship on Saturday.
The All Blacks produced a scintillating performance at ANZ Stadium, running in six tries in the first game between the trans-Tasman rivals since last year's World Cup final to put one hand on the Bledisloe Cup.
World champions New Zealand led 32-3 at half-time following tries from Ryan Crotty, Beauden Barrett, Jerome Kaino and Waisake Naholo, with Dane Coles going over after the break before Julian Savea became the fastest All Black to 40 tries in his 44th Test.
Gifted fly-half Barrett also scored 12 points with the boot in another influential display for Steve Hansen's men, who ran the Wallabies ragged in a one-sided encounter.
Nick Phipps scored Australia's solitary try five minutes from time, but the damage had long since been done by then and the Wallabies also lost Matt Giteau, Rob Horne and Matt Toomua to injury in their biggest ever home defeat to New Zealand.
Australia head coach Cheika was unable to take a single crumb of comfort from his side's mauling, which followed a series whitewash at the hands of England on home soil.
Asked if there were any positives to take out of the game, he said: "Not really.
"I thought we defended very poorly. Defence is attitude. There's no rustiness, let's get that one out of the way. When players run at you you've got to tackle them and that's the nature of the game."
New Zealand will retain the Bledisloe Cup if they win in Wellington next Saturday and Cheika warned there can be no repeat of such a poor showing.
"We've got six days to make a change and make a difference to how we played tonight," he added.
"That's really disappointing. We're not sugar coating, it's our problem to own and we need to go about doing that together and stay tight as a team and find some ways forward. If we play like that there will be less people at the next one."
Cheika also revealed that injuries sustained by Giteau, Horne and Toomua "don't look too good."