Wallaby Will Genia facing the chop

He's considered by many to be the best halfback in world rugby, but stand-in Wallabies skipper Will Genia could find himself on the pine in Saturday night's Test against Argentina in Perth.

Rugby analyst and former Wallaby Greg Martin claims he has inside knowledge that Genia will be dumped from the starting line-up against the Pumas, with No.8 Ben Mowen to take over the captaincy.

Genia's axing would thrust Brumbies scrumhalf Nic White into the starting side.

But more importantly, it would signal that no one is safe as new coach Ewen McKenzie attempts to find the winning formula to fix his misfiring outfit.

McKenzie was left looking for answers following last week's 38-12 drubbing at the hands of South Africa in Brisbane.

The former Reds coach was so frustrated at his team's error rate that he's contemplating dumbing down his tactics in a bid to ease the burden on players.

Genia has provided the odd moment of brilliance this year, but has struggled to consistently produce his best form.

McKenzie and Genia worked closely during their time together at the Queensland Reds, which yielded the 2011 title.

But with the Wallabies desperate to snap a four-game losing run, Genia could be the high-profile casualty when the team is announced on Wednesday.

"He (McKenzie) talked about dumbing things down - maybe they're playing too complex a game plan," Martin told Triple M radio on Tuesday.

"They will be dropping Will Genia to the bench and replacing him with Nic White.

"Ben Mowen will become the new captain of the Wallabies."

Genia's halves partner Quade Cooper is also under pressure after a substandard performance against the Springboks.

Brumbies five-eighth Matt Toomua, who started the first two Tests of the Rugby Championship, is in line to replace Cooper.

That could produce an all-Brumbies inside back contingent of White, Toomua and inside centre Christian Leali'ifano.

Flanker Michael Hooper said Genia remained positive despite the recent criticism.

"Will's a great team man," Hooper said.

"His work ethic is second to none and that hasn't changed.

"He's a bloke that wants to improve and wants to be at the top of his game all of the time. It's great for me personally to feed off that and to learn off him."

A loss to Argentina on home soil would be calamitous for the Wallabies, whose losing run is costing them fans in the crowded Australian sporting market.

Hooper predicted bright times ahead for the Wallabies despite their recent form slump.

"The Brumbies made the final. The Reds made the finals series, and the Tahs weren't far off," Hooper said.

"So the talent pool is there.

"It's just not happening on the field at the moment.

"But speaking to previous players, they had those times as well in teams that you can't seem to spot faults in. We're working through it."