Captain Ricky Ponting admitted Australia lost their focus at the key time as they slumped to a one-day series defeat against India.
Ponting made only a single in both of the finals
"There are no excuses - we lost three games in a row and two of them were finals," he said after India won the second final in Brisbane by nine runs.
It is the second successive year Australia have lost in a home series final, after England's 2-0 win in 2007.
"Our level of cricket has dropped and we did the same last year," he added.
They outplayed us in the two finals and deserve to go home with the trophy
Australia, who won the World Cup for the third successive time last year in the Caribbean, return to the West Indies on tour in May.
They play three Tests, followed by a Twenty20 international and a five-match one-day series.
"We might have to look at the way we go about things to try and save some momentum up for the end of series," Ponting said.
Reflecting on India's victory down under, the Australia skipper said: "They outplayed us in the two finals and deserve to go home with the trophy."
Ponting denied that the friction between Harbhajan Singh and members of his team during India's tour had affected Australia's focus.
"It's quietened down over the last week and we've played our worst cricket over the last week," he said.