Inglis is still yet to recover and Carey has taken his chance with back-to-back scores of 74 and 77 not out, with both innings salvaging Australia from perilous positions to post competitive scores at Headingley and Chester-le-Street respectively.

"It's always a good problem to have when you've got people competing for spots within your team," he said. "Unfortunately, Josh was injured in the T20 series, and Alex has jumped into that spot and done incredibly well. So as I said, it's always a good problem to have."

"It's always something we will consider," McDonald said. "If you think back sort of 12 months ago, we had Ingo and Kez in the same team. So it's quite possible, and the way that Alex is batting is very impressive. Summing up the situation, navigating going through the middle against spin. He's a quality player. He's played a lot of international cricket, so the way he's performing isn't a surprise to us."

Australia have been keen to experiment with an allrounder at No. 8 since McDonald took over as coach in 2022 in the hope of potentially using that combination in major tournaments, only to consistently revert to playing seven batters and four specialist bowlers which was the model that won them the World Cup. Hardie's form adds to their options, and potentially strengthens the case to play eight batters given he has bowled very impressively in the series so far. He can bowl with the new ball, and he provided a showcase of his death-hitting prowess despite having only limited experience in the role at the domestic level.

"Aaron Hardie called into the team late, got some critical death hitting there to get us up to a total," McDonald said. "He was definitely impressive today.

"It's something we've discussed over a period of time, and we're on the record in saying, leading to the last World Cup, we wanted to have three distinct ways of playing, and one of those was with the eighth batter. So we've done that previously. The allrounders aren't always available and fit, so therefore sometimes that team's not on the table.

"But we feel as though with the allrounders we've got with Cameron Green, Aaron Hardie, you throw Marcus Stoinis also into that who's not here, Will Sutherland's been exposed across the journey as well. So you start to work through that. Matthew Short is an allrounder in his own right as well, along with Glenn Maxwell. So we've got options to be able to structure up that way. We do like to lean towards the three quicks with Adam Zampa, but clearly, that's another way of playing."

"It's always a different team when Adam Zampa is not there, an incredible performer for us over a long period of time," McDonald said. "It was a late decision to leave him out. Clearly, we've had a little bit of illness in the camp, and that's been well documented. Unfortunately, he was the latest casualty.

"[Head] should be right for the next game. I won't go into that any further, but he should be ready to go."