So, here we go again. After many expected the summer of 2019 to be a catalyst for change at Chelsea whereby the man in charge was given an extended period of time to rebuild the playing squad to his own tune, in the end Frank Lampard's tenure lasted just 18 months.
Now, there's a new man in charge, in former PSG and Borussia Dortmund boss Thomas Tuchel, who has been out of work for just over a month following his sacking from the Ligue 1 champions on Christmas Eve.
With a team riddled with talent currently struggling for consistency, amid a run of one league win in five games, Tuchel will need to hit the ground running as the Blues look to cut the current five-point gap to the top-four.
That process starts at home to Wolves on Wednesday night. However, how different will Tuchel's first starting XI look to Lampard's most-recent outfit in the league, a team which looked short of ideas and confidence at Leicester last week?
Some will be licking their lips at a new man at the helm, you may think, while others may be looking anxiously over their shoulder.
Sportsmail takes a look at which members of the first-team squad could be the winners and losers from Tuchel's appointment as manager at Stamford Bridge on an 18-month deal.
WINNERS
Timo Werner
The Germany international, signed to solve Chelsea's goalscoring problems of last season, has endured a torrid first six months to life in England.
Though he scored twice against Southampton to open his Premier League account on October 17, things have only gone downhill from there. Two goals in 14 league appearances since, with Tammy Abraham and Olivier Giroud often preferred up front as a result.
However, from playing in an unfavoured role out-wide on the left, Werner will surely now get an extended opportunity as the lone number nine under Tuchel. One thing's for sure - if the arrival of one of the most talented German coaches about doesn't kick-start Werner's Chelsea career, what will?
Kai Havertz
Similarly, the former Bayer Leverkusen playmaker has struggled to exert his influence since his £90m arrival last summer.
In his defence, factors have worked against him, with a bout of COVID-19 and injury issues making consistency hard to come by. The 21-year-old should be allowed time to acclimatise to a new league and country too.
Yet patience only lasts so long at Stamford Bridge, as this week shows. Tuchel's arrival could spark Havertz into life at Chelsea, whether it be this season or looking ahead to the 2021-22 campaign.
Callum Hudson-Odoi
The 20-year-old's lack of starts under Lampard, just three in the league all season, is curious given his raw ability and knack for turning games around.
His introduction against West Brom back in September helped trigger a revival from 3-0 down, while he was also bright as a substitute in Lampard's last league win in charge, against Fulham.
With Tuchel no doubt looking to freshen things up amid the Blues' stale attack, Hudson-Odoi could be a beneficiary of the German's arrival in west London.
Jorginho
Tuchel was reportedly interested in a loan deal to take the Italy international to PSG in September and is an admirer of the midfielder's attributes.
Though a move obviously didn't materialise, Jorginho has only made eight starts in the league so far this season and could be given an enhanced role under the new manager, perhaps instead of Mateo Kovacic or Billy Gilmour.
Tuchel is a tough task-master and will want players devoted to the cause and prepared to do the hard yards - Jorginho falls into this category.
Antonio Rudiger
Originally frozen out by Lampard at the beginning of this season, the Germany international has started three out of Chelsea's last four league games as he looks to seal a spot in Joachim Low's squad for this summer's European Championships.
Highly-regarded in his homeland, Tuchel's PSG were a reported interested party for the 27-year-old in the summer.
Though Kurt Zouma has come on leaps and bounds under Lampard, the new manager may want to revert back to experience in his first few weeks in charge. Rudiger should get his chance to shine.
LOSERS
Billy Gilmour
The 19-year-old was the big breakthrough star during Lampard's time at the club, with his stunning first month of first-team football before lockdown curtailed by a serious knee injury.
Though he has re-entered the fray in the past month, whether Tuchel will place as much faith as Lampard has done in Gilmour's development is another matter.
While the incoming boss will be aware of the Scot's panache and quality in midfield, does he have the stamina and wherewithal to slot into a workmanlike Tuchel starting XI? Already, reports have surfaced that Gilmour could depart on loan before the month is out.
Mason Mount
Arguably Chelsea's best player so far this season, the England international was a linchpin under Lampard - often to the extent of unfair ridicule on social media.
There's no doubt Mount would be extremely unlucky to lose his place in the starting XI under the new regime - he has been one of Chelsea's starring lights this season and is now a regular for club and country.
However, stranger things have happened. One of Tuchel's immediate tasks will be to get last summer's expensive purchases firing, with Havertz top of that list. Unless one is played out-of-position, one thinks the pair are unlikely to be in the same starting XI.
Who will get the initial nod in the No 10 role?
Tammy Abraham
After countless loans, the forward was given his big break at the Bridge under Lampard last season.
His return was admirable - 18 goals in all competitions, including 15 in the league. Yet for Chelsea, it wasn't quite enough. Werner came in and was expected to take Abraham's place in the team.
It's to the Englishman's credit that he has featured in 16 of 19 league games so far, and he is fresh off a FA Cup hat-trick. But, like Mount, Abraham's chances of regular football could be scuppered if, as expected, Tuchel perseveres with Werner early on.
Thiago Silva
It'll be fascinating to see what the Brazilian veteran's role is in Tuchel's squad, with the pair of course having worked together at PSG.
More than that, Silva was Tuchel's skipper. Thus, you would think the partnership would be strong and the 35-year-old would be someone to rely on.
Yet upon Tuchel's sacking at PSG last month, Silva gave an interview where he described the German's removal as 'predictable.' Did Tuchel see that as disrespectful?
Silva was well-liked by Lampard and vice-versa, as illustrated by the centre back being the first player to react publicly to Lampard's removal as coach. Could he now be out-of-favour under a Tuchel revamp?
Kurt Zouma
The Frenchman, having originally signed for the club back in 2014, had finally solidified a starting XI spot at the Bridge this season.
Zouma has looked dominant and assured on the whole - but much like Mount, could the 26-year-old simply be dropped in order to shake things up?
Though Fikayo Tomori has left on loan, Andreas Christensen has been waiting in the wings for some first-team action and with Rudiger likely to reclaim his centre back place, Zouma could be the one to make way.
kuobkoz
1
like seriously putting Mason mount on the group of losers 💀😡, expect the same results as before for chelsea, mount is the engine of chelsea,we wanted a 50/50 coach that have nothing to do with racial descrimination, German national will have more playing time ,you know what i mean.
Nafiz00
2
right now thiago is ireplacable
kabclprstu
1
Chelsea have a good coach now I'm happy
kabclprstu
3
it's now Chelsea have coach
KayBoat
1
Winners will definitely be some players who are likely to get more playing time but the losers are obviously the fans because these Chelsea players are going to get the same results they were getting under Lampard
GunnArs
2
wrong about werner... first game, unused substitute. 🤷♂️
lazenopr
4
Winners: Germans in Epl. Losers: English in epl. What an irony!
RiOMaRtIn75
0
Mount lost his on field dad😂
maybe 🤣😹
NewtScamander
3
Tuchel got his late Christmas gift after getting sacked at the Christmas eve [Crylaugh]
ducabilpsz
0
Ğayoa
Yeshe_Yeshe
1
plz dont try to mix everything
liadmollen
0
i see your Grey hair coming fast
nutblmruyz
2
rudiger is pure 100% flop
Loco14
5
putting Mount is the group of losers would be a great mistake from Tuchel. Mount is our shining star 🌠 of the group
lord_henry-14
1
Chelsea have there eyes set on Nagelsman.I think If Tuchel has got anything wrong he will be sack
mayongela
2
If tuchel will use jorginho is his squad instead of Kante or Mateo his will be sacked soon.. Jorginho won't play that role in EPl maybe in other leagues
Brightberry
2
Every news a see is all about Chelsea 🤷♂️
Sikdklmprt
2
mount is Chelsea's power house at the moment as far as am concerned
RoyAbhinandan
0
Mount lost his on field dad😂
KayzmMalopa
1
Try this
Mohammad Kazim
1
Chelsea need a experience Coach Not newbie like Lampard.. Hope Tuchel work good
dinlnsty
0
What about Giroud, Kante , Kovacic and Kepa... ??
Roman_Stryker
1
hope you have a nice 15 months at Chelsea
Eriq
5
Is this article trying to tell me that Tuchel is coming to play the players that were not getting time under Lampard?
Syd007
4
Mount lost his on field dad😂