We don't need Cavani. There. I said it. No one doubts that he's a phenomenal player, and that he'd be a fantastic addition to our squad, as anyone who has such a proven goal scoring record would be. The same can be said of Rooney, or Lewandowski. However, £50 mm (Cavani) or £30 mm (Rooney or Lewan) is a tad too expensive for me, and I'd rather see the money go for another position.
The way I see it, our most important need at the moment is at CB. Some would argue that we need a good holding midfielder, but with Mikel, Essien, Lampard, Luiz, Ramires, and possibly Oscar (the benefits and drawbacks of which should be in another post, but suffice it to say that Oscar plays deep for Brazil, and we all saw how that turned out) all likely to be competing for a place in the two, I would think that we are pretty set in the CDM role. Now, I'm not going to turn down Van Ginkel if he shows up for less than £10, but seeing as we have some solid youth in the role as well (McEachran, Ake, Chabolah), we don't absolutely need a player there. What we need is a centre back.
With David Luiz pushed up into holding midfield, arguably his best position and one that allows the Blues to take advantage of his natural forward thinking play, we lack a world class CB partnership. Terry is passed his best, while Cahill has good last ditch play but horrible positional play. Of our current half back players, only Ivanovich is really solid and consistent. Now is the time to build on that.
Here's the problem: young CBs are floating around for exorbitant price tags. As Porto just made £70 mm from the sales of Rodriguez and Moutinho, they can afford to demand a huge sum for Mangala, who at £25+ isn't worth it. Zouma and Margquinhos are good value for money buys under £15 mm, but we have some solid young defenders in the youth set up who should arguably be given a chance when they come back from loans in summer 2014 (Kalas, Ake, Chabolah, etc.).
In addition, any of those defenders mentioned above would need to be developed into a world class player. They are all quality, no doubts there, but are any of them mentioned in the same sentence as Varane, Ramos, Thiago Silva? No. So while a young player would be a good buy if Chelsea could pick them up on the cheap, none of the above would walk into a starting birth on the team. More importantly, none really offer a significant upgrade, at least for this season, on what we already have.
With the exception of Varane, there aren't any CBs under the age of 23 who could be considered world class. Varane is the perfect player, and if I'm honest I wouldn't mind shelling out £30 mm on him, but its highly unlikely Madrid will sell him, even if Mou did have a huge impact on his development. With that in mind, I think we should go for Ramos. He played under Jose at Madrid and, unlike Casillas, never really suffered. He's still a world class centre half (the only players in that position above him are arguably Thiago Silva and Mats Hummels, neither of whom are going anywhere in the near term) and he's young enough for the Blues to get at least four years. His positional play is fantastic, he's tall and strong enough to make it in the Prem, and he'd be joining a sizable Spanish contingent at the Bridge.
With a player like Ramos, our defense could then be considered, arguably, the best in the world, for the next few years. Cech, one of the most consistent keepers around, eventually replaced by Courtois, last seasons best keeper in La Liga. Ramos and, ideally, Ivan with Terry and Cahill rotating as necessary in the centre. Cole, still the best left back in the world, on one side with Azp, a consistent performer who is good going forward and solid defensively, on the other. That defense, coupled with Mou's track record of team discipline, would give us a tremendous chance to once again be crowned the best in England and the best in Europe.