All Australia's batsmen must step up and score runs against Sri Lanka and not just the more established Travis Head and Usman Khawaja, according to captain Tim Paine.
The two are the only members of Australia's top six to have survived both the Pakistan away series and India home Tests headed to Thursday's Gabba Test, with the hosts desperate to re-find form.
Marcus Harris also played all four of the games against India after debuting in Adelaide, while Marnus Labuschagne has been in and out of the side in that time.
Australia have scored just one red-ball century in the past 12 months - Khawaja's heroic effort to save the first Test against Pakistan in Dubai in October.
With a search on for answers, Head was elevated to the team's leadership group this week as vice-captain alongside Pat Cummins, with Josh Hazlewood and Mitch Marsh both missing the two-Test series against Sri Lanka.
But Paine said all the batsmen had to stand up and be counted, starting with Thursday's first Test at the Gabba.
"I suppose there is (a responsibility) on (Head and Khawaja) but it's no different to anyone in our batting line-up," he said.
"We know to win Test cricket we've got to score more hundreds and whether Travis is vice-captain or not is irrelevant, he's a top-six batsman playing Test cricket for Australia.
"He knows he has to score hundreds, so does Usman, so does Marcus Harris, so do I. It's what we do."
The decision to appoint Head co-vice-captain ahead of more-established Khawaja and Nathan Lyon surprised many outside the team on Tuesday.
But it's understood both were nominated by the playing group before the tour of the UAE, where they were asked to present their leadership capabilities to coach Justin Langer.
"It's being looked at as an opportunity to give some guys a little bit of extra responsibility and see how they go," Paine said.
"Usman and Nathan Lyon and Mitchell Starc are leaders within this group and that won't change, their behaviour won't change and neither will Travis or Pat."
