Australia's boss declared the only perfect system is a "hot water system" as he fumed at those who have questioned his new Socceroos formation
Socceroos coach Ange Postecoglou lashed out at critics of his new formation, declaring the only way they'll find a perfect system is if they turn on the hot water at home.
For the second straight game, Australia lined up in a 3-2-4-1 formation as goals from Jackson Irvine and Mathew Leckie inspired a 2-0 win over United Arab Emirates in Tuesday night's World Cup qualifier.
The new formation had been a point of contention following last week's 1-1 draw with Iraq, with critics questioning the timing its introduction and the lack of defensive cover out wide.