IMO he's been strolling games for far too long now, and he gets away with it on reputation.
He shits himself when he gets into the final third of the pitch. His end product used to get dismissed because the rest of his play was so good, but for the last few years now he's started to seriously slow play down, he's not carrying the ball as much as he used to and he refuses to make a telling pass, they're all sideways and backwards. Right now he's a hinderance more than anything.
Him and Rakitic are the reason Messi has to drop so deep so he can start picking out the passes for Neymar and Suarez. I think both need replacing in the summer. The treble was won last season because of the front three, this season the team fell apart the moment the front three went off the boil. That should have sent alarm bells ringing higher up. Only takes one Suarez ban and Messi injury at the same time and we're screwed.