The Roar boss allowed himself some deserved reflection after his fourth national title as a coach, but again revealed little on his future despite links with Melbourne Victory
The Roar's dramatic 2-1 win over Perth at Suncorp Stadium on Sunday made Postecoglou the most successful coach in Australian domestic football history, with four national titles to his credit.
In two and a half years, Postecoglou has transformed the Roar from shambolic underachievers to the toast of the A-League, effectively redefining expectations of how Australian teams are capable of playing.
Reflecting on his second consecutive grand final win, Postecoglou said he took great pride in his success as a coach and felt he was beginning to fulfil his life ambition.
"I keep bringing up how many grand finals I've made and won and coached and I'm really proud of that, [because] it's what drives me as a coach," he said.
"I'm constantly seeking some sort of credibility and leaving my mark... I've worked really hard with the players and the teams and the staff that I've had to get those championships.
"Four is great and I'm really proud of it; it's almost overwhelming because I think when I started my coaching career I had some real ambition to do things that I hoped were great and I think I've made a bit of a mark now."
Postecolgou's work at the helm in Brisbane has made the former Young Socceross coach the most sought after mentor in the country.
With reports of a big-money contract offer from Melbourne Victory provoking mass speculation over the past months, Posetcolgou has been in a constant battle to keep his plans for the future to himself and focus on Brisbane's campaign.
The master coach had no fresh information for the media following Sunday's thriller, asking for a moment to savour his success before looking forward.
"I'm going to enjoy the moment and us winning another championship and I think I deserve to bask in the celebrations we'll have over the next couple of days," he said.
"When the time's right and after I sit down and talk to the Melbourne people, the next move will be decided.
"I understand the curiosity about it, but from my point of view I've been consistent saying that I haven't entertained any other thoughts besides coaching this team to another championship."