Australia coach Mal Meninga was heartened to see some of his fringe players stake a claim in Friday's 54-12 win over Scotland in the opening game of the Four Nations.
The Kangaroos lost the title to New Zealand two years ago, but kicked off their quest to win it back with a dominant victory at Hull's KC Lightstream Stadium.
Meninga rested the likes of Greg Inglis, Johnathan Thurston and Matt Scott, but the world champions still had far too much for the rank outsiders.
And Meninga says some of those players drafted in have applied pressure on the more established members of the squad.
"It's a squad of 24. It's nice to have a bit of internal pressure in the squad and they responded to it well," he said.
"It's what you need in a footy team, that internal pressure.
"We're 24 deep and they're all great players, all deserve to be here.
"It's nice to have everyone play really well and put that pressure on."
Debutant Matt Moylan was among those to impress, assisting four of Australia's 10 tries, but Meninga refused to confirm if the 25-year-old would feature again in England.
"We'll deal with that down the road," he added. "But he was the best player on the pitch tonight."