AVB/Benitez/Mourinho couldn't work out what to do with him? I dunno. I think Mourinho knows what to do with him but prefers Hazard and Oscar in those positions so that's that. Mata managed to get 20 goals and 35 assists last season in 60 games and he's got 3 goals in 10 games for Spain last year, too. I wouldn't say this is a player that managers can't figure out what to do with, because whatever they did with him it sure seemed to work last season/year.