Australia captain Ricky Ponting paid tribute to England's resolve after their shock one-day series victory.
Australia lost three successive matches against England
"They had their backs to the wall but can go home with a big smile on their faces for some terrific one-day cricket in the last couple of weeks," he said.
"They should all be very proud of the way they have been able to turn things around so congratulations to England.
"We've let everybody down in the last couple of games, we've got work to do but we look forward to the World Cup."
Ponting is to be given time off to rest a troublesome back before the World Cup begins in the Caribbean in March.
But the rest of the team will travel to New Zealand to begin a three-match series next weekend.
However, after playing non-stop since September, with 20 one-day internationals and five Ashes Tests, he refused to blame fatigue for their recent lapses.
"It's the end of a long summer and I know some of the guys are feeling it physically," he added.
"But it's been our skills and our decision-making that has let us down over the last couple of days - that's the disappointing thing.
"I don't think it's the time to panic. We'll pick a very strong squad of 15 players for the World Cup."