Mauricio Pochettino has "everything to succeed" in his first season if appointed as Chelsea's new head coach, according to former Blues winger Willian.
Pochettino has been out of management since being sacked as Paris Saint-Germain boss at the end of last season, but he is reportedly close to taking over at Stamford Bridge ahead of next campaign.
His rumoured arrival comes at the end of a tumultuous season for Chelsea, who have sacked Thomas Tuchel and Graham Potter on the way to their lowest-ever points tally in the Premier League era.
But Willian, who won two Premier League titles as well as the Europa League during his seven-year spell with the Blues, believes Pochettino is the man to bring success back to the club.
"He is a great manager," Willian told Stats Perform. "He did a great job while he was at Tottenham and he has everything to succeed.
"Chelsea is a giant club, it's a club that is always used to winning titles. Chelsea might not win anything one year, but the next year they'll be fighting for a title.
"Chelsea has been winning titles this way for a few years now, and sometimes they don't do well in a league, but they win a European trophy or a cup.
"Chelsea is a club that will always fight for titles, and I think they have everything to fight for a title again next year."
Chelsea have spent over £600million in the transfer market since Todd Boehly's consortium took control of the club, including £323m on acquiring eight players in the January window alone.
Willian feels the new signings will come good, adding: "I think the team has quality players.
"They have signed a lot of players, but you can see they have a lot of quality players and I think they have everything to succeed, yes."
Willian now plies his trade with Chelsea's west London rivals Fulham, who have secured a top-half finish in a successful first Premier League campaign following their promotion last term, sitting nine points above the Blues with one game remaining.
Willian remembers his time at Stamford Bridge fondly, though, claiming they were the best years of a career that has also included spells at Arsenal and Shakhtar Donetsk.
"Chelsea was the best moment of my career," Willian said. "It was almost eight years, I won titles, I was very happy.
"Even before I was there, I already dreamed of playing for Chelsea. I watched Chelsea games on TV and I had this dream of playing there, and I was able to make that dream come true.
"For me, those were the best years of my career. Those were incredible years."