"Eddie's a champion at that niggle but Cheik's not scared of him. He's a tough guy. If he beats England, all is forgiven. It would be one way to redeem a pretty average year.
"Australia are going to be really dangerous. They feel at home at Twickenham after the World Cup - they're comfortable. On their day, they can beat anyone."
There has been a clear change in approach by Cheika, who came out with flying fists this week after Jones' claims of illegalities in the Wallaby scrum.
As a relative newbie to Test rugby, it is a master vs apprentice scenario for the Wallaby coach.
Cheika was subsequently portrayed as a clown by the Herald during the Rugby Championship and Ella feels he is learning to pick his battles.
"Cheik reacted too harshly to the clown thing," added Ella. "You can't bite at everything that happens otherwise you're going to die of a heart attack.
"Sometimes he just got a little bit caught out. You've got to pick your time to go off.
"By saying Ireland are probably the best team in the northern hemisphere, he would have upset Eddie a little bit. He's a very passionate coach and the players love that.
"For the first six or seven Tests, Cheika was all over the place with selection. Different back rows, different second rows... Now he's got a lot more consistency on this tour."
For England's own 'Mr Consistent', Chris Robshaw, Saturday will be his first time facing Australia at Twickenham since last year's catastrophic Pool A defeat.
Robshaw's face was at the centre of a Fox Sports promotion mocking England's World Cup exit - but the former skipper is ready to return to the scene of the crime.
"We went down there and had a fair bit of abuse come our way," said Robshaw.
"I think as a group that makes you tighter together, especially on the other side of the world. We are in a different position now, at home, with 80,000 people behind us."
England will match the 2002/03 record of 14 straight victories, overseen by Sir Clive Woodward, if they beat the Wallabies again on Sunday - when Marland Yarde and Nathan Hughes are expected to start in place of Elliot Daly and Billy Vunipola.
It would be an historic achievement, but Robshaw insisted that another series whitewash is the only motivational milestone.
"It is about breaking it down to this four game series rather than the whole year," said Robshaw.
"We're not happy with how we have played this series and feel we have a lot more to give.
"We want to finish off the job at hand and win 4-0. We wanted to win 3-0 in the summer and we achieved that, now it's about this target and winning 4-0."
