Spurs, who host Southampton on Sunday, are 14th in the Premier League, 18 points behind Chelsea after 30 appearances.
Several sources have told the BBC Sport that Post Colgo is under threat from a disappointing campaign.
Winning the Europa League – becoming the first silver at the club since 2008 – will take into account whether he will stay in his job next season, but good sources have indicated that he may not be the main reason.
Tensions between Spurs’ Spurs Fans and Postkoglu are expected to be among the issues discussed when the decision comes on his future.
And Postcoglo’s tense relationship with fans is expected to be among the reasons mentioned when time comes to decide on the future of Postkoglo.
There is also the use of a new way under a new coach to ensure that the shortcomings that have participated in a bad campaign have not been repeated.
The future of Postkoglo – and the appointment of a replacement if a change is made – the most obvious issue will be for the English Spurs rankings to be resolved in the coming weeks.
Asked whether the Europa League win was the only way to save his job, Pushatkoglo said: “If people really don’t see what I’m trying to, I don’t think they’ll never see, so if a cup is the only way.
“I’ve been surviving for nearly two years, which is very good for Tottenham! Somewhere, the club needs to be committed to something.
“There is a life after that for everyone, including Tottenham and I am with me,” he said.
“It’s “headed” with injuries, issues around the reference will increase and criticize this season.
“I am a fighter, so the more the war is, the more I enjoy the challenge,” he said. “But I can’t fight an invisible opponent, so that’s the part he wore me.
“I don’t know how to deal with it. I can’t deal with it.