Ever since Clearlake Capital took the reins from Roman Abramovich, it's been a rollercoaster ride in West London, with a large number of incomings and outgoings.
Ins and outs continue at Stamford Bridge
In the last year alone, Chelsea either sold or loaned Noni Madueke, Christopher Nkunku, Joao Felix, Djordje Petrovic, Lesley Ugochukwu, Kiernan Dewsbury-Hall, Renato Veiga, Armando Broja, Carney Chukwuemeka, Nicolas Jackson, Mathis Amougou, Bashir Humphreys, Kepa Arrizabalaga, Marcus Bettinelli, Alfie Gilchrist, Ben Chilwell, Lucas Bergstrom, Mamadou Sarr, Mike Penders, Kendry Paez, Aaron Anselmino, Marc Guiu, David Datro Fofana and Jadon Sancho.
Those coming into Stamford Bridge included Liam Delap, Jorrel Hato, Estevao, Joao Pedro, Dario Essugo, Jamie Gittens, Alejandro Garnacho and Facundo Buonanotte, not to mention a number of players whose loans elsewhere had ended, meaning they were back in the fold.
Aside from the many other injuries affecting the first-team staff that the club currently has to deal with - 11 players out is currently the most in the Premier League - of the list of new signings, both Delap and Essugo are sidelined with no return date.
Despite this, Enzo Maresca has still steered Chelsea to a respectable seventh place after seven rounds, just three points behind Tottenham in third and five points behind leaders Arsenal.
How have the new signings fared this season?
So, how have the big-name signings fared since their respective moves to the club?
Estevao certainly put himself on the map in his last game for the London giants, scoring the injury-time goal that not only defeated reigning champions, Liverpool, but also saw Maresca sent off for a Jose Mourinho-style celebratory run down the touchline to join in the celebrations.
In truth, that's just about the first thing Estevao has done for the club since he joined, a solitary assist notwithstanding.
It should be recognised, though, that he is just 18 years of age and will almost certainly take time to develop into the player that everyone expects him to be.
To date, the exciting Brazilian has played a total of just 341 minutes across nine games in all competitions, and is yet to play anywhere close to a full game. The jury, therefore, remains out until Maresca believes the time is right to give Estevao an extended run in the side.
Garnacho has cut a forlorn figure in West London
After a protracted and high-profile summer move from Man Utd, Alejandro Garnacho might well have expected as near to top billing as a new signing could reasonably ask for, but the 21-year-old has played even less than Estevao.
He wasn't in the squad for Chelsea's top-flight game against Fulham, meaning his debut came in a 2-2 draw against Brentford, where he played for just 11 minutes.
Then benched in the league until the Liverpool game - including for a potential return against United - he's also been used sparingly in the Champions League and the Carabao Cup, with no real explanation from Maresca as to why.
After the trials and tribulations the Argentinian had to endure under Ruben Amorim in his final few months as a Man Utd player, in a World Cup year, Garnacho isn't going to be best pleased at being stuck on the bench most weeks. Whether the status quo changes anytime soon will be revealed in due course.
Gittens keeping Garnacho benched?
One could argue that the form of another new-boy, Jamie Gittens, is behind Maresca's decision on Garnacho, even though he, too, hasn't registered a goal or assist in 259 minutes of action across all competitions.
Gittens has looked electric in possession, however, and seems to be one of those players who gets supporters out of their seats.
That's a priceless commodity to have for a winger, though it's fair to say that, like his contemporaries, he's not really getting a fair crack of the whip in terms of minutes on the pitch.
Being a bit-part player arguably doesn't suit him, Garnacho or Estevao, but perhaps players and supporters need to trust Maresca and, ultimately, accept it will be a long, hard season during which each will be given their chances to impress.
Jorrel Hato's physicality will stand him in good stead
Jorrel Hato has yet to make his Champions League bow for Chelsea, but has impressed in those matches in which the manager has trusted the Dutch youngster.
A sign of his physicality at the back could be seen by his two yellow cards in his opening two appearances for the West Londoners - both as a left-back - and that's exactly the type of commanding performances that Chelsea need from their defenders, particularly in those games where one goal is likely to be the difference.
Hato won't necessarily have been used to that in a more 'technical' Dutch league, so it's to his credit that he appears to have adapted that side of his game quickly.
Buonanotte out of his depth
Of all of the new signings, Facundo Buonanotte appears the most out of his depth at this point, with respect.
The Argentinian was left out of the squad in the first three matches of the Premier League season before making a 45-minute cameo against Brentford.
Since then, he's not been picked for the squad again, other than for the Liverpool match, where he was kept on the bench.
With his only other action coming against Lincoln in the Carabao Cup and against Benfica in the Champions League, his season-long loan could be doomed - unless he can somehow get his foot in the door and force it open.
Joao Pedro the shining light for Enzo Maresca
By contrast, Joao Pedro has enjoyed the best start of all the Chelsea newcomers.
Beginning where he left off at the Club World Cup, the Brazilian striker has two goals and three assists in his seven Premier League appearances.
With 705 minutes played across the English top-flight and the Champions League, he's enjoyed the most time on the pitch, and that's clearly allowed him to build up the rhythm that hasn't been afforded to his teammates.
12 appearances in total, taking into account the Club World Cup, have seen a return of five goals and three assists. The Blues can ask for no more than that at this stage, and with Delap injured for the foreseeable future, Joao Pedro has plenty of time left to make his mark.
Time will tell who else emerges as a success in what is an important season for any player with World Cup aspirations.
