Melbourne, Feb. 10 : Former Australian cricketer Simon O'Donnell has said that skipper Ricky Ponting and coach Tim Nielsen need to grow up and start delivering results.

In a scathing assessment, the former Test all-rounder blasted the "ridiculous" decision to rest Ponting and hit out at the leadership and selection structure.

Former Test selector John Benaud, who claimed it was a major tactical error to announce that Ponting would be rested, supported him.