Chelsea owner Roman Abramovich spent over £70 million to bring in a world-class defender in David Luiz and striker in Fernando Torres to Stamford Bridge in January, but it is the midfield that Villas-Boas seems most likely to strengthen prior to the start of this season.
With a 4-3-3 seeming the most likely formation that the Portuguese tactician will opt for, who will the three players be that are given the responsibility of controlling the midfield when the season kicks off away at Stoke on August 13th? Or will Villas-Boas surprise most and change the strategy that has been used most consistently during Chelsea's most successful spell in their history, instead changing to a four or even five man midfield?
With many talented midfielders already at the club, including the likes of Frank Lampard, Michael Essien and Ramires, as well as rumours circulating that Chelsea are keen to sign creative players in Luka Modric and Javier Pastore, it could well be the most difficult decision that the new Chelsea boss has to make.
Here are six options in midfield that I feel Villas-Boas may choose from this summer.