"It's about being really consistent and setting the platform for the backs. We've obviously got dangerous backs so the better ball they get the better the team will go," tighthead prop Owen Franks said.
"They bring something a bit different," he said of the Pumas forwards. "They bring a lot of passion. It's hard to say, they just get stuck in so it's even more important that we execute and do our roles really well."
One of Hansen's main gripes has been the poor execution in cleaning out rucks. He expects each of his forwards, and backs occasionally, to get rid of individuals rather than double or triple-teaming players which takes away precious resources. "One man, one bullet," he calls it.
The set piece will be important too of course and Franks said Pumas loosehead Rodrigo Roncero, the 35-year-old qualified doctor of medicine, was a challenging opponent.
"He's really good. He's up there with the best. I always say every loosehead brings something different. He's really gutsy and pretty strong.
"I can honestly say every [test] scrum is different and tough."
He added of the Argentine scrum: "Sometimes you can crumple them on a hit and they still hang in there. That's what Roncero's really good at. He always stays in the fight and uses his body really well to get in good positions."
Franks, a 24-year-old who has played 38 tests, admitted that life after Brad Thorn, an acknowledged scrummaging powerhouse, has taken some getting used to.
"It took a bit of adjusting to at the start of the year, but a guy like Luke Romano has come through really well. He's embraced Thorny's role. Brodie Retallick as well. They both love their scrummaging and they work hard at that part of their game."
Now Franks is looking to get back in the fight himself.
"It's where we make our money.
"The tough conditions and travelling two weeks in a row and different crowds, it's good to step up and raise the bar."
Patrick McKendry flew to Argentina courtesy of LAN Airlines.
