Chelsea backed Thomas Tuchel with a £278m transfer spend this summer, before sacking him on September 7.
The Blues splashed a record-breaking amount in the summer transfer window on a host of new players - which heaped pressure on Tuchel from the get-go.
Chelsea recorded a league-topping £228.4m net spend, ahead of Manchester United, West Ham and Nottingham Forest.
Additionally, question marks were raised over some of the fees paid on incomings, with Raheem Sterling arguably the only addition to have proven, sustained pedigree in the Premier League. Sterling cost less than prospects Wesley Fofana and Marc Cucurella.
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Here, we run through the ins, outs and players linked with Chelsea over an expensive, busy summer window.
Who did Chelsea sign?
Marc Cucurella - Chelsea, £60m
Raheem Sterling - Man City, £47.5m
Kalidou Koulibaly - Napoli, £33m
Omari Hutchinson - Arsenal, free
Carney Chukwuemeka - Aston Villa, £20m
Cesare Casadei - Inter Milan, £16.8m
Wesley Fofana - Leicester, £75m
Pierre-Emerick Aubameyang - Barcelona, £10.3m
Denis Zakaria - Juventus, loan
Who did Chelsea sell?
Callum Hudson-Odoi - Bayer Leverkusen, loan
Emerson Palmieri - West Ham, £15m
Timo Werner - RB Leipzig, £25.3m
Antonio Rudiger - Real Madrid, free
Andreas Christensen - Barcelona, free
Danny Drinkwater - released
Charly Musonda - released
Jake Clarke-Salter - QPR, free
Lucas Bergstrom - Peterborough, loan
Sam McClelland - Barrow, loan
Romelu Lukaku - Inter, loan
Nathan Baxter - Hull, loan
Jamie Cumming - MK Dons, loan
Ian Maatsen - Burnley, loan
Tino Anjorin - Huddersfield, loan
Malang Sarr - Monaco, loan
Ross Barkley - released
Baba Rahman - Reading, loan
Dujon Sterling - Stoke, loan
Xavier Simons - Hull, loan
Ethan Ampadu - Spezia, loan
Jayden Wareham - Leyton Orient, loan
Harvey Vale - Hull City, loan
Bryan Fiabema - Forest Green, loan
Billy Gilmour - Brighton, £10m
Who were Chelsea linked with?
Edson Alavarez (Ajax)
Mehdi Taremi (Porto)
Rafael Leao (AC Milan)
Douglas Luiz (Aston Villa)
Ibrahim Sangare (PSV)
Arsen Zakharyan (Dinamo Moscow)
Josko Gvardiol (RB Leipzig)
Frenkie de Jong (Barcelona)
Lucas Ocampos (Ajax)
Anthony Gordon (Everton)
Wilfried Zaha (Crystal Palace)
Cristiano Ronaldo (Man Utd)
Harry Maguire (Man Utd)
Ivan Toney (Brentford)