Should Chelsea run into problems this season, Roman Abramovich will reinforce in the January transfer window.
The Blues are aiming to win the Premier League, but they have to play the attacking football Abramovich wants. Two areas of concern are defensive midfield and centre-back.
Here are four potential players the Blues could add in January.
David Luiz's defending is progressively getting worse. Gary Cahill would be an elite sweeper, but he's a liability as a centre-back when Roberto Di Matteo doesn't employ a deep back line.
Mapou Yanga-Mbiwa will be snapped up quite cheaply considering his expiring contract. He doesn't charge out like Luiz and he's more adept at winning back possession than Cahill.
Yanga-Mbiwa would complement John Terry quite well.
The two red flags with Yann M'Vila are for his discipline off the field and the fact he hasn't developed much since his first season.
He's basically the same M'Vila that shocked football aficionados with his maturity and football savviness as a 20-year-old.
This season, his passing is immaculate (as usual), but he seems more content just sitting back and jockeying—it's almost as if he's playing to not get injured.
The problem with playing two pivots is that neither John Obi Mikel nor Frank Lampard are a dominant presence in midfield.
Chelsea are essentially playing a front four, so it must be counterbalanced with at least one elite ball winner.
Mikel is playing the best football of his life, so he's not the problem.
Lampard's goals (all penalties) are overshadowing the fact he's shirking his defensive duties. He's the one that isn't adequately protecting the back four.
It's a lot harder when the game plan isn't to park the plane in front of goal. Lampard is being exposed because he isn't a defensive midfielder. He doesn't function like a defensive midfielder.
This is where Étienne Capoue comes in.
The more you watch him, the more you become impressed by his physique, his winning attitude and his tackling.
This season, there's no comparison between Étienne Capoue and Yann M'Vila. Capoue is still going out there and trying to win back possession, whilst M'Vila is happy to just pass the ball 77 times per game and not get injured trying to tackle.
Who is the best pure No. 9 in the world right now?
The forward rises to the occasion, is strong in the air, can turn defenders with ease and is an excellent finisher.
If Falcao has a 10-goal buffer on Torres leading into the first day of the January transfer window, Chelsea have to sign the Atlético Madrid forward.