FC Barcelona has the best midfield in the world.
Xavi, Iniesta, and Busquets are probably all in the Top 10 midfielders at the moment, and Barça also has world-class talent on the bench in the feet of Seydou Keita and Javier Mascherano.
However, that makes five men for three spots, leaving one roster spot open for another midfielder to come in and further boost the Catalan giants' midfield.
They seem set in the defensive midfielder position with Mascherano and Busquets. Yet in the creative midfielder position, Xavi is getting up in years, and they do need another playmaker to fill in as a sub and as an eventual replacement for Barcelona's No. 6.
The idea of a player coming in and constructing an even better midfield for Barça is a scary thought, but this list will try to find five suitable candidates that can come in to Pep Guardiola's possession based tiki-taka style and improve it.
For this daunting task, we will judge each player on what they would hypothetically cost, on what they would bring to Pep tactically, and (most importantly) how well they fit to the system that is already in place at Camp Nou.