Ange Postecoglou says he hasn't got a hit-list, but concedes there will be casualties as he regenerates the Socceroos in his unprecedented five-year contract to coach Australia.
Postecoglou says he will sell hope to the Australian public by exposing younger players to international competition, after being appointed to coach the Socceroos to the 2018 World Cup.
But he's pledged to treat the ageing core of Socceroos on their merits.
"I'm not going in with a target or a hit-list of people," Postecoglou told reporters in Sydney on Wednesday.
"Sometimes people surprise you. I certainly don't discount anyone.
"But will there be changes? Of course there will.
"I have got my own way of doing things and whenever that happens, along the way there are changes to personnel and the way we operate."
Postecoglou said regeneration was needed and he was duty-bound to offer chances to young players. But he refused to write off Australia's campaign for next year's World Cup in Brazil.
"The two-fold challenge of the job in the short term will be to make sure we have our best possible team for Brazil, but also we need to expose some of our younger players to international football," he said.
"I have never been let down by throwing young players in. And you never really find out until you give them the opportunity, and I plan to do that."
The 48-year-old applied for the top job 13 years ago but lost out to Frank Farina - the last Australian to coach the Socceroos full-time.
Postecoglou said an immediate task was restoring morale after consecutive 6-0 away losses which resulted in the sacking of German Holger Osieck.
"Whilst we have struggled a bit on-field in the last couple of games, my first job is to make us world-class off the field," he said.
"We will change the way we play, obviously, which will probably affect the kind of players we select.
"It will be a gradual process."
Postecoglou, who was born in Athens, Greece, but emigrated to Australia with his parents when aged five, will begin his tenure against Costa Rica in Sydney on November 19.
"I really want ... to sell hope to people who love football, but more importantly, love our nation," he said.
"You look across all our codes and national teams - our cricket team, our Wallabies, our rugby league team, we want them to do well. And not many of them are at the moment.
"So there is a great opportunity for us to be a flag bearer."
Postecoglou, who will coach A-League club Melbourne Victory against his former club Brisbane Roar on Friday night, said we would demand an "attacking and aggressive" style.
"That is what the Australian sporting public like, and it's where modern football is going," he said.
"But it's not just about the aesthetics. I'm very much into winning."