Graham Arnold is confident he has only scratched the surface of what he can achieve with the Socceroos and is eyeing silverware after signing on until the end of the next World Cup cycle.

Ten months after being on the brink of the sack amid a stuttering qualifying campaign, Arnold's brilliant efforts in Qatar have delivered him the opportunity to become the first man to lead the Socceroos at consecutive World Cups.

Now Arnold wants to kick on by claiming next year's Asian Cup, before sealing direct qualification to the 48-team 2026 World Cup in Canada, Mexico and the United States and progressing beyond the round-of-16 finish achieved in Qatar late last year.

The Socceroos won two games at a World Cup for the first time and advanced to the round of 16 for only the second occasion.

Now, entrusted with a plethora of exciting young talents, including Garang Kuol, Harry Souttar, Marco Tilio and Keanu Baccus, Arnold, who knocked back offers from overseas to stay with the Socceroos, was adamant his squad had much more to give.

"If I honestly thought that we'd reached our max, I would've gone," Arnold told reporters on Monday.

"But I don't believe that. I have so much belief that we have so much more to do.

"I spoke to quite a number of the players to get the vibe from them as well, if they feel that we've got more to achieve and all of them were like 'we're only 50 per cent Arnie - we've got so much more' and with these kids coming through.

"So it's one step at a time. What's great is that potentially this year, we're going to have some friendlies here in Australia to build on that."

Australia were knocked out of the 2019 Asian Cup in the quarter-finals as defending champions and will eye redemption in Qatar early next year.

"That one step and first step is the Asian Cup. Last time I did the Asian Cup it was more of a talent ID-type Asian Cup because I knew there was going to be all those retirements that happened," Arnold said.

"But this time ... the first step is is going to the Asian Cup to be successful and win it, secondly is direct qualification for the World Cup because I really don't want to go through that again and thirdly, to achieve more than what we did at the World Cup."

Arnold said his players were "all on board' with those three goals.

He was keen to continue to look for more talented players at home and abroad, with assistant Rene Meulensteen staying on in Europe to help continue to grow Australia's depth.

"Today is a new day. It's a new campaign. We're starting over again," he said.

"I said this last time but there's no guarantees.

"All players that are eligible for Australia are on the selection sheet today to be chosen for the rest of this campaign."

Arnold's role will be expanded to involve mentoring Australia's youth coaches, working alongside chief football officer Ernie Merrick on talent identification and pathways and working with FA on securing greater football infrastructure.

He is pushing for a home of football for national teams to train, play and be based in, along with more high-performance funding from the government.