The Greek-born coach is now the favorite to be named Neil Lennon’s permanent successor at Celtic after talks with first-choice Eddie Howe failed dramatically.
The Yokohama Marinos’ potential Premiership stint with no European leagues experience surprised many as the club moved to Plan B.
The 55-year-old made a name for himself at Brisbane Roar and Melbourne Victory before stepping into the hot seat of the Australian national team.
He rubbed shoulders with former Spain boss Vicente del Bosque and former Dutch blunderer Louis Van Gaal at the World Cup during his tenure.
Celtic next manager chase later
In a resurfaced Optus Sport interview, he was asked about Southern Hemisphere coaches getting shot.
Postecoglou has proclaimed that they are more than ready to make the leap to European leagues – claiming he has not been moved by some of the elite names he has faced throughout his career.
He said: “I think there is massive stigma against Australian coaches and where we are from and where we have coached.
“I don’t think that has changed or is necessarily going to change very quickly, but the problem is with those Australian traits that Kevin (Muscat), Popo (Tony Popovic) and Harry (Kewell) are willing to start anywhere.
“When I look at these guys, they could definitely be coaching at a higher level in Europe, no doubt about that.
“I have been quite privileged to have met most of the best coaches in the world and I can tell you that for the most part you come out disappointed; not so impressed.
“Obviously for us having this Australian passport means you start from the bottom.