"Ricky Ponting has been an Australian player since 1995, ODI captain since March 2002 and Test captain since March 2004, while Andrew Hilditch has been a selector since 1996 and the chairman of selectors since 2006.

"Both men have been crucial to the Australian team's success during this period and I believe that they have recently received unfair criticism," Clarke said.

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Ponting's tactics have been lambasted as negative, while Hilditch is in the line of fire for persisting with unfit players like Andrew Symonds and Brett Lee in the first two matches.

Clarke said the team was coping with retirements of greats like Shane Warne and Glenn McGrath and the vaccum created by their exit will take a lot of time to fill.

"When assessing the results of the Australian team, it should be noted that great players have retired over the past two years. Players of this calibre are not replaced overnight and in some cases ever," Clarke explained.

"At times like this when Australian cricket is challenged, Ricky and his team, and Andrew and his selectors, have the support of Cricket Australia. They now have a chance to leave their most important legacy in managing the current transition from the great team of the last 15 years to rebuilding the dynasty," he added.

However, Clarke said he was not against constructive criticism. "This is not to say they, their team mates, their co-selectors or Cricket Australia should be immune from balanced criticism," he said.