The Australian took the north London club’s managerial position this summer and they are currently sitting second in the Premier League table.
Postecoglou’s men have also scored eleven times in their first four league matches despite the departure of Harry Kane this season.
Spurs, however, failed to beat fellow top-flight side Fulham in the EFL Cup last month and got knocked out of the competition.
Postecoglou stressed that even though he is disappointed following the EFL Cup exit, he is thinking longer term.
He insisted that he wants to bring sustainable success to the club and he is trying to build Spurs that way.
“I’m here because I want to create a club that has the opportunity to win things on a yearly basis”, Postecoglou told talkSPORT.
“And there’s a difference because us winning a Carabao Cup and finishing tenth is not what I think this club is about.
“That’s not dismissing the Carabao Cup.
“I want to win every game; trust me, I was disappointed on that night as well but that’s not the endgame for me.
“It’s not about just winning something for the sake of winning something, it’s about building something.
“That’s what’s always driven me my whole career.
“I want to build clubs that have sustainable success and supporters go into every season feeling good about their prospects and watching their team play football.”
Postecoglou’s men will be looking to rescue all three points from their next league clash against Sheffield United on Saturday.