Darren Lehmann blamed Australia's inconsistency for their fourth Ashes Test defeat to England at the Durham Emirates ICG.
The tourists were set 299 for victory and seemed to be coasting with openers Chris Rogers and David Warner putting on 109 for the opening wicket.
However, once Rogers had edged Graeme Swann to Jonathan Trott at slip, Stuart Broad caught fire to claim six wickets and leave Lehmann's men skittled out for just 224.
And the Australia coach said while his side showed signs of fight against a strong England side, their overall performance was not good enough.
"To play for Australia you have to perform to the level that's actually acceptable for everyone in our team, for the Australian public and for the media," he said.
"At the moment we're not doing that, so we've got to perform to the level that we expect, and that you guys expect, and what the public expect back home.
"I think they've fought really hard and they've actually shown glimpses of challenging a really good side, obviously, but we haven't done that consistently.
"We'll back them and we'll continue to back them. But at the end of the day, performances count."
What will be the result of the fifth Ashes Test?