#4 Lack of quality in the Barcelona midfield

Barcelona have built their reputation, at least in the recent past, on the fact that they always have one of the most domineering midfields in world football. When you look at some of the names that have donned the red and blue for The Blaugrana you can't help but question the depth and quality of the current midfield.
No doubting that Sergio Busquets is a class act. Even Ivan Rakitic has managed to adapt wonderfully to the challenges at the club where he was never going to be the best ball-playing midfielder. So after a dismal second season, after a honeymoon first which ended in a treble, the Croat has adapted his style of play to suit the ball-winning needs of his side.
Everything, offensively, though flows through the twinkling feet of Andres Iniesta and we're worried about where the creative spark or the artistic vision is going to come from when the Spaniard leaves next season.