The 2013-14 season has been far from a disappointment at Stamford Bridge, with the Blues still competing for both Premier League and Champions League silverware.
However, it's not quite what Jose Mourinho has come to expect as a manager and as a result the helmsman will be seeking improvements in the next campaign.
With all areas of the squad being examined and assessed, here we look at some of the latest rumours swarming the west London outfit.
Alberto Moreno, Sevilla
With Ashley Cole out of contract at the end of the season and no new deal yet, Mourinho could find himself with a void to fill at left-back.
And the Portuguese may have already made his decision as successor after The Mirror's Paul Gorst reported that a £15 million bid was being readied for the services of Sevilla defender Alberto Moreno.
Bleacher Report's Christopher Atkins labelled Moreno early on in the campaign as one of his breakthrough stars of the year:
Picking a breakthrough team of 2013. Get your suggestions in, with the results to be on @ESPNFC on Monday. Barkley, Alberto Moreno, etc.— Christopher Atkins (@Chris_Elastico) December 29, 2013
And with Cole seemingly available, The Sun (h/t The Mirror's Chris Richards) has word from a Bernabeu source that the Englishman is highly thought of in Madrid:
"Ashley is a world class player and Madrid have wanted to sign him for some time. It is now the perfect opportunity as he is free."
With Cesar Azpilicueta doing a fine job on his less natural flank and Ryan Bertrand returning from a loan move to Aston Villa, Mourinho will have options on the left side of defence, but Moreno might be one of the more amicable choices among Blues fans.
Diego Costa, Atletico Madrid
After it seemed so assured that Diego Costa was the man for Chelsea, Roman Abramovich has taken a diversion in his transfer hunt this summer, and he is now reported be more favourable of a move for Paris Saint-Germain's Edinson Cavani.
According to Ben Jefferson of the Express, Abramovich could take over in the Blues' bid to find a reliable striking presence, which has allegedly led him to the Parc des Princes. Spanish writer Diego Torres Romano backs up such claims:
Will I remain at Paris next term? We will see at the end of the season. I am fine in Paris, but obviously there are things we have to talk about with the club, things we need to do in a different way.
Playing in 4-4-2 was my vision of the team when I joined Paris. It is one of the arguments that motivated me to sign in that club. Let’s terminate Le Championnat and we will see what will happen.
Diego Costa may yet turn out to be the option Chelsea look for, but unfortunately for Mourinho, it's often Abramovich who has the last say on such matters, and his gaze would appear concentrated elsewhere.
Arturo Vidal, Juventus
Having established himself as one of the finest technicians in his position, Arturo Vidal is once again gaining the attention of Europe's elite, per Dave Kidd of The Mirror.
Kidd writes that a £20 million move for the Chilean international is in the works.
"Will I leave? No, I will definitely stay in Turin. I've scored 10 important goals for the team this season but I must give thanks to my team-mates."
With Frank Lampard's time at Stamford Bridge gradually nearing its end and John Obi Mikel slipping to a second-string option, Mourinho may look to build upon the January signing of Nemanja Matic with another well-rounded central option.