Ange won't rattle Roar players

And Broich, last season's A-League Johnny Warren Medal winner, backed Postecoglou's Roar replacement, former assistant Rado Vidosic, describing him as "the brains" behind Brisbane's title successes.

"Rado is very analytical," said Broich.

"He's always been ... you could call him the brain behind our success, and now's he's in charge and obviously it's different."

Blessed with wonderful footwork and exceptional vision, Broich was a key player in Postecoglou's two A-League titles with Brisbane and he's now ready to prove a thorn in his former mentor's side.

"Ange might know what our strengths are but we're still a pretty decent team and we've got a way to break their defence down," said Broich.

Asked if Brisbane may have a few surprises for its old coach, Broich said: "Of course.

"Rado is working on it and we've practiced already and we'll have a game plan, that's for sure."

The 30-year-old midfield architect said Postecoglou's knowledge of the Brisbane playing group would not rattle him or his team-mates.

"It's got nothing to do with Ange, they (Victory) lost their first game and we lost ours which adds a lot of pressure.

"Neither team can change things over night."

He dismissed last weekend's first-up 1-0 loss to Perth to a late header.

"It's not the end of the world. Our performance was pretty average but it's just round one and the season is a marathon, not a sprint," he said.

"It's round one, let's relax and see what happens."

However he did concede Brisbane was disappointing up front and would need to do a lot better on Saturday night in its first home appearance.

"One of our strengths is our attack and we were lacking creativity in the front third (against Perth) and we really need to be better," he said.

"Defensively we are better than last year.

"We've changed out style slightly (under Rado) and we need a little bit of time to get used to that.

"You could compare it to a golfer or tennis player when they change their technique, it doesn't happen overnight.

"In the end, we'll get there, we'll be a strong team, there's nothing to worry about."