Slipping to a historic low of seventh, the Wallabies coach will next week present to the Rugby Australia board his plan to improve the team's performance ahead of next year's World Cup.

Cheika didn't believe sweeping changes to his set-up were required but is looking for greater collaboration from the Super Rugby franchises.

"We've discussed what we need to change internally and I think before we go chopping guys or changing things around you need to understand what we need to change internally to make a difference because maybe what we were doing before hasn't achieved the same outcome," Cheika told Fox Sports' Kick and Chase.

"You need to give the opportunity for changes to sink in and make a difference."

Rugby Australia boss Raelene Castle also appeared in a pre-recorded interview and floated the idea of a head selector.

Cheika said he hadn't had any discussions about such an appointment.

"No-one's spoken to me about that ... I will say this though, I'm not just picking numbers out of a hat - I take advice from coaches who've been in the job in the past," he said.

"I'm always taking counsel on those things and I think more often than not we're making the right calls."

Cheika said he was looking for more buy-in from Super Rugby sides, hinting at the frustration of the Brumbies choosing to play three Wallabies just before the June Ireland series when he wanted them rested.

"There's no doubt that the more we can collaborate with Super Rugby with what we can deliver around fitness leading into the international season, that's definitely something we can push for," Cheika said.

"This year we've had moments where we've tried to manage that but we haven't been able to get a handle on it completely.

"But there's a willingness from Super Rugby coaches that I speak with regularly to change and improve so that's the biggest thing."

Cheika also revealed that his famous half-time spray of the players when they were trailing 31-7 against Argentina last weekend didn't include any "technical information".

He said the response was more than just scoring tries, which delivered a 45-34 victory.

"It was a time when it had to get personal ... people have talked about the chat at halftime but you've got go out and do it and they did," Cheika said.

"What they just had to do was understand that this is personal, let's do what we know how to do, do it as best we can, and see what happens."

Castle was happy to see the group respond to Cheika to secure the win but said the question still needed to be asked about the first half performance.

She said that while Cheika had a contract through to the World Cup, the board wanted to see more detail.

"He's the head coach and it's his responsibility to put that plan together and he will be presenting that to the board," she said.

"We want to see what is the plan? What is the plan to recognise that we can see improved performances?"

Australian Associated Press