Chelsea confirmed Graham Potter as their new manager on Thursday just over 24 hours after parting company with Thomas Tuchel six games into the Premier League season.
The 47-year-old Potter, who has earned a glowing reputation as a visionary coach at Brighton & Hove Albion, has agreed a five-year contract with the six-time English champions.
His appointment is quite a departure for a club who usually select household names with experience at Europe's top clubs, but signifies a likely change of approach.
He is the first managerial appointment under new American chairman Todd Boehly who led a takeover three months ago.
"We are thrilled to bring Graham to Chelsea. He is a proven coach and an innovator in the Premier League who fits our vision for the Club," Boehly said in a statement.
"Not only is he extremely talented on the pitch, he has skills and capabilities that extend beyond the pitch which will make Chelsea a more successful Club.
"We look forward to supporting him, his coaching team and the squad in realising their full potential in the coming months and years."
Tuchel, who won the Champions League for Chelsea a few months after replacing Frank Lampard at the start of 2021, parted company on Wednesday, following Chelsea's surprise loss to Dinamo Zagreb in the Champions League.
Chelsea spent round 250 million pounds ($287 million) in the summer transfer window but are sixth in the Premier League with 10 points after six games, losing at Leeds and Southampton.
The speed at which Potter has been installed as Tuchel's replacement suggests Chelsea had their eye on the man who cut his teeth at Swedish club Ostersund, taking them from the fourth tier to the top flight for the first time and into Europe.
His first assignment will be away to local rivals Fulham on Saturday.
"I am incredibly proud and excited to represent Chelsea FC, this fantastic football club," Potter who had a short spell with Swansea City before taking over at Brighton in 2019, said.
"I am very excited to partner with Chelsea's new ownership group and look forward to meeting and working with the exciting group of players and to develop a team and culture that our amazing fans can be proud of."