Former Brisbane Roar captain Matt Smith says Ange Postecoglou can make players feel "invincible".
And he believes the new Celtic manager won't hang about trying to make his Hoops side play the same way.
Postecoglou was announced by outgoing and incoming chief executives Peter Lawwell and Dominic McKay as Neil Lennon's replacement after a 106-day wait for a new manager.
He'll need to spend 10 days in quarantine when he arrives in Glasgow and will just miss the start of pre-season.
But Smith says the Parkhead players can expect intense training and constant communication as he overhauls the club's playing style.
Smith told the Daily Record: "There won’t be a minute that he’s going to waste.
"It was only a matter of time, from my point of view, that he was going to be able to take an opportunity in Europe.
"There’s no doubt that he’ll bring his possession-based style to Celtic because that's what he does best.
"I would like to think that he’ll make some good inroads early on.
"He’ll communicate his game plan, his methodology and his beliefs to the players quickly."
Postecoglou rose to prominence by winning the A-League with Brisbane where he implemented his typical style of football and took the unfancied Queensland side to the title and recorded a 36-game unbeaten run over two seasons.
That led to four successful years in charge of the national team and Smith said he transformed the game in Australia with his work at the Roar.
"The amount of belief that he instilled into that playing group made it feel like we were invincible," he added.
"A lot of how I play and understand the game now was due to the impact that Ange had on my career.
"His football philosophy was very much geared around a possession-based model. As a central defender, I had to build up play, and that was at a point where Australian football hadn’t really seen that before.
"He had the vision to have a Barcelona-style possession-based game within the Australian context. Every single element of his training sessions was directed around building up and maintaining possession and making good decisions.
"He really opened my world to what the central defender’s role could be. We had to build up every single play and we constantly had to be moving and adjusting and working out different patterns.
"We had this style that we developed over a period of time and we changed the face of Australian football because of it."
