If there is one certainty about Ange Postecoglou's imminent, groundbreaking Tottenham Hotspur tenure, it's the Australian manager will do things his way.

And if history is anything to go by, Postecoglou will like at every other turn in his fascinating career defy expectations.

Postecoglou, 57, has pulled off Australian sport's biggest ever coaching move by signing as the Premier League giant's manager for the next four years, starting July 1.

The good news for Spurs, who have famously and consistently fumbled their bids for silverware this century, is just about wherever attack-minded Postecoglou goes success follows.

That started in his early 30s when he led South Melbourne to two National Soccer League championships as manager.

After a stint in the football wilderness after working seven years with youth national teams, Postecoglou took over at Brisbane Roar and turned a battling club into the revolutionary 'Roarcelona'.

That included back-to-back grand final victories in 2011 and 2012 and a record 36-game unbeaten run, before agreeing to join Melbourne Victory in April 2012.

He left Victory to lead the Socceroos at the 2014 World Cup, before claiming the Asian Cup - Australia's first in the men's game - on home soil the following January.

Postecoglou steered Australia to 2018 World Cup qualification before dramatically quitting before the tournament.

He then guided Yokohama F. Marinos to their first J1 League title in 15 years in 2019.

After joining Celtic in 2021 he won five of a possible six domestic trophies on offer, including claiming the treble this season.

He has also been the torchbearer for Australian football coaches, showing a less-heralded passport or set of coaching badges shouldn't be a barrier to succeeding on the world stage.

After being appointed at Celtic, Postecoglou lamented being overlooked for previous jobs as his past achievements had been "swiped away pretty easily" due to taking place in Australia and Japan.

Months later, "Ange Ball" rocked Celtic and made critics of his appointment eat their words.

Amid this winding journey, Postecoglou never strayed from his attractive, expansive and possession-based brand of football.

For club and country he has consistently identified the players capable of, and willing to, buy into that style with the workrate required to deliver it.

Those that don't get moved on.

Back in February 2011, in the thick of Brisbane's glory years, Postecoglou discussed his buy in or ship out approach, which included the Roar backing him over former captain and Socceroos great Craig Moore.

"I was absolutely determined and headstrong to do it this way," he said.

"I wasn't going to let anything stop me. The fallout - good, bad or otherwise - I was prepared for it.

"I didn't at any stage doubt what I was doing."

It is an approach Postecoglou has never wavered from.

Twelve years on, Tottenham are about to see why.