Daniel Levy called Ange Postecoglou’s sacking a ‘collective decision’, and revealed Tottenham’s 17th-place league finish was the key reason behind this.
The Australian guided Spurs to a first major trophy in 17 years with victory in the Europa League, but was dismissed just 16 days later and replaced by ex-Brentford boss Thomas Frank.
It was a move which shocked many, and received backlash from sections of the club's supporters, who pointed the finger at chairman Levy.
But in a rare interview on Gary Neville's The Overlap, the English businessman revealed that Tottenham's board had all been in agreement over the decision to dismiss Postecoglou.
While he recognised the importance of his Europa League glory, Levy claimed Spurs' dismal league form left the board with no choice but to reconsider the coach's future.
Last season, the north London side had their worst ever Premier League campaign as they finished 17th and lost 22 of their 38 fixtures.
Why was Ange Postecoglou sacked?
Explaining the call, Levy said: "Ultimately, the decision sits with me, but it’s always a collective decision.
"We have a board of directors, but under the board, we have a group of technical staff, and they advise.
"We had to explain the decision to part ways with Ange. Ange just won us a trophy – a European trophy – highly significant and he’s always going to be in our history.
"However, we couldn’t lose sight of the fact that we finished 17th in the league, we lost 22 Premier League games, and it’s impossible for Tottenham to be in that position.
"And so we had to take the emotion out of it and we had to give some data points as to why we decided to do what we did."
Levy then heaped praise on Postecoglou's successor - longtime former Brentford boss Frank - as he claimed the Dane has all of the necessary qualities to take Spurs to the next level.
Levy continued: "Whenever you appoint a coach, you always believe it’s right and you need a lot of ingredients for it to be right.
"Thomas Frank is a highly intelligent individual; he’s got a fantastic way about him in terms of communication.
"He will be great at developing both young players and older players – and making them better.
"He gets the style of football we want to play; he understands that Rome wasn’t built in a day – we haven’t set him: ‘You’ve got to win the league this year’. We just want to compete at the highest level."
During his 24-year stewardship at Spurs, Levy has often drawn criticism from fans for spending less than rival clubs in the transfer market.
But Levy shut this claim down, as he insisted the club invested heavily in recent years, and that Frank will receive financial backing whilst in charge.
This summer, Tottenham have completed the £55million signing of Mohammed Kudus from West Ham, as well as making Mathys Tel's loan move permanent for around £30m.
On Frank, the 63-year-old added: “We will support him to the best of our ability.
"If you look at transfer fees, we’ve been in the top four spenders since the stadium opened, we’ve spent close to £700 million net on new players – this isn’t just about money.
"This is about some luck, having the right balance in the team, having the right coach – there’s a lot of things that have to come together.
“I very much hope that Thomas will bring all the right ingredients and bring this team to where it belongs, which is right at the top.”
As well as explaining some of his major decisions this summer, Levy also opened up on how he is perceived by Spurs supporters.
Having overseen a number of bold changes as chairman, including the decision to leave White Hart Lane in 2017 and move into the new 62,000-capacity Tottenham Hotspur Stadium.
When asked about this, Levy said: "I think it’s one of those situations – when I’m not here I’m sure I’ll get the credit.
“When you come here and look at this wonderful building [Tottenham Hotspur Stadium], and the fact that other clubs are now trying to copy what we’re doing, that should be a sign that maybe we did do something bold, and something right.”