Premier League side Tottenham Hotspur announced on Wednesday that Jose Mourinho has been appointed as the team's new manager and signed a contract to coach the club until the end of the 2022-23 season. The move comes following the sacking of Mauricio Pochettino.

"We are delighted to announce the appointment of Jose Mourinho as Head Coach on a contract that runs until the end of the 2022/23 season," the team said in a press release.

"I am excited to be joining a club with such a great heritage and such passionate supporters. The quality in both the squad and the academy excites me. Working with these players is what has attracted me," said Mourinho.

"In Jose we have one of the most successful managers in football. He has a wealth of experience, can inspire teams and is a great tactician. He has won honors at every club he has coached. We believe he will bring energy and belief to the dressing room," said Daniel Levy, chairman of Hotspur.

According to The Times, negotiations between Hotspur and Mourinho had been going on for days. The Portuguese manager on Tuesday held an emergency meeting with his assistants in London before he decided to join the club.

Some believe Mourinho is able to succeed at Tottenham Hotspur Stadium.

"Poch failed to win a trophy in his five years…(Mourinho) would be left-field for Levy but if you want a winner – and Spurs have not won a trophy for a long time – Mourinho is your man," wrote Jamie Redknapp in the Daily Mail.

"He's been hugely successful and that is the one thing Tottenham lack at this moment, no matter how well Pochettino's done. They haven't quite got over the line in getting a trophy and normally that's what Jose Mourinho does when he goes to a club," Jamie Carragher told Sky Sports News.

There are also reasons not to be so positive. Mourinho failed in Manchester United because the club's executive vice-chairman Ed Woodward refused to give him what he wanted – power to control the club and money to buy players. Levy also has a reputation for being cautious with money and a control freak, making it difficult to expect any bright prospect for Mourinho with his new employer.

It's been agreed that Mourinho needs money to build his success. In his three years in Man United, it cost the club over 300 million pounds (about 387 million U.S. dollars) to introduce multiple star players including Paul Pogba, Romelu Lukaku and Alexis Sanchez. Back in 2017, Daily Mail calculated that the clubs Mourinho had worked for in his 17-year-long career had spent some 1.1 billion pounds (about 1.4 billion U.S. dollars) in buying players.

By contrast, Levy is unwilling to raise salaries for players Hotspur already have, not to mention waving the cheque book and spending big money landing new ones. Actually, outflow of talents and failure to improve franchise are the major reasons behind Hotspur's decline this season.

Both Mourinho and Levy are well-known for their obsession with power and it's too hard to tell who is more stubborn. One thing for sure, the Special One will meet the biggest challenge in the third English club he coaches.