You're right on Silva and Iniesta...the AP-A role was much more accurate, but they seemed to be start off more centrally (at least Iniesta). I listed them as attacking mids as opposed to advanced playmakers because they were allowed to roam more (I suppose that could be solved by manually allowing them to roam). However, Fabregas started higher up the pitch than both Silva and Iniesta, so I would make him a striker TQ. If he starts at the AMC then he will be too drop too deep and will move into the same space as Xavi. Upon further contemplation, I would probably line their front 3 up like this:
AMCL-Insiesta (AP-A...allowing him to roam from position)
AMR- Silva (IF-S)
ST-Fabregas (TQ...trying to adjust his closing down settings, but keeping tackling at low maybe...or setting close down always to the CBs?)
I would probably make Alba a WB-S as his first instinct wasn't to push towards the endline, but instead to combine with Iniesta and send through balls from a little deeper. He only drove to the endline for a cross on occassion.