“I firmly believe my next challenge will make me a better coach and hopefully allow me to return home and contribute in a positive fashion to Australian rugby in the future,” McKellar said.
“I’d like to thank [chief executive] Andy Marinos, Eddie and Dave Rennie for their support and giving me the opportunity to be part of the Wallabies coaching staff over the past two years.
“I’d also like to thank the players and I wish them and Eddie all the best in what’s a massive year ahead.”
The development is a result of Jones’ shock return as Wallabies coach in January.
McKellar, who was in charge of the Brumbies between 2018 and 2022, had been considered the heir apparent to former Wallabies coach Dave Rennie and was unsettled when RA pounced on Jones after his sacking in England.
Jones also pitched a succession plan to McKellar, but it was unsuccessful, leaving the Wallabies coach under immense pressure to assemble a quality coaching line-up before the side’s opening Rugby Championship Test in Pretoria in July.
McKellar reportedly beat Michael Cheika and Rassie Erasmus to the Leicester job. Reports also said Tigers officials had consulted Borthwick on who he believed should get the job.
McKellar and Borthwick have a relationship and the forward-oriented style of the ex-Brumbies coach is seen as a good fit for Leicester, one of the historically dominant clubs in England.
Jones is left with the task of replacing him as a forwards and set-piece coach. The Wallabies coach said last week he wasn’t concerned he had not signed anyone yet and would contemplate recruiting Super Rugby coaches for a “smash and grab” mission at the World Cup.
Loading
Current Brumbies forwards coach Laurie Fisher last week revealed he would not continue in an assistant coach role with the Wallabies.
Rennie’s former staff have now all moved on, with Matt Taylor and Scott Wisemantel leaving last year. Wisemantel has agreed to help Jones as a consultant, and former Wallabies back Berrick Barnes is set to join RA as a skills coach.
Sports news, results and expert commentary. Sign up for our Sport newsletter.