The world champions, despite fielding a youthful, experimental side, were rampant in the opening period, with Postecoglou admitting his side were lucky to only be trailing 2-1 at the interval.
That was Cameroon coach Hugo Broos' reaction to his side's opening match against Chile, an indication that he will largely stick with the same starting line-up against the Socceroos. And this after a first half that saw the defending world champions - OK, let's rephrase for accuracy: Shkodran Mustafi, Julian Draxler and nine other guys - pummel the Socceroos at will.
But Australia can take heart knowing that they pushed the world champions, who had outscored opponents 27-1 since the previous time they allowed two goals in a game, a 2-0 defeat to France at Euro 2016. They added a third early in the second half and everything looked rosy. until it wasn't.
"I felt if we got the ball to our midfield in good areas and with Krusey making some forward runs causing them problems".
"I think he knows what I can do", said Kimmich, who operates as a defensive midfielder or across the back line.
Unfortunately for Australia, they can't fully contend with the overall talent of Germany.
Milligan underlined the unity of the squad when asked how Massimo Luongo, who was replaced at halftime by Kruse against Germany after conceding a spot kick, might be feeling.
"Because we want to continue to evolve as a team and we want to do well here", he said.
In the first half, they blew Australia away. We know they've got to produce.
After last Tuesday's 4-0 drubbing by the Selecao in Melbourne, head coach Ange Postecoglou expects Germany's young guns to prove themselves in Sochi.
Parity lasted all of three minutes.
"Hopefully we can build on that second half".
Tomi Juric was at hand to tap-in after Leno made a mess of a Rogic shot from outside the box in the 56th minute.
Australia boss Postecoglou said before the game he was not planning to alter the team's possession-based approach, despite the German threat.
"Leon Goretzka always digs deep, he is technically and physically strong and was very good today", Loew said in praise of the 22-year-old Goretzka. It's not easy to do. While this tournament does not seems to be an important for Germany judging by the squad they have sent, they will still want to win this game since it is the German mentality.
"I'm disappointed with the result but not the performance of my players".
If Australia are trying to make a statement, they need to first learn exactly where they sit in world football. It's obvious I'm not happy with how my season went, as you've already said, but I'm hoping that next season I can start more games. "Hopefully that composure comes".