Embattled Rugby Australia CEO Raelene Castle is fighting back against a growing chorus of voices calling for her resignation. 

The sporting body is seeking crisis talks with 11 disgruntled former Wallabies captains who have called for a leadership overhaul at the governing body.

World Cup-winning skipper Nick Farr-Jones is behind a vote-of-no-confidence letter delivered to boss Raelene Castle and the board.

George Gregan and Phil Kearns - a leading candidate to succeed Castle - are among those to put their names to paper.

Dual World Cup winners John Eales and Tim Horan as well as grand slam-winning skipper Andrew Slack are not signatories.

Castle told Simon Barnett and Phil Gifford the only thing she's paying attention to is pushing on with big strategic changes which are starting to pay dividends. 

“That’s what we have set about doing the past few years.

"Those results are not immediate, but I do believe we have the building blocks in place to see things improve.”

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