This is a strange one. The fullback who played for Torino and who plays for Italy (mind, I haven't watched much of Italy recently at all) seems a different player from the poor imitation at OT.
I hope he comes good, but I wouldn't be surprised if he doesn't settle in England. I think the flaw is in his mentality. By all accounts, he's a humble - shy guy. And this is evident when things get tough, instead of rising to the occasion, he seems to shrink/hide. Not the leadership mentality for a big club.
He does well for his NT though. I suppose he could feel a bit more "at home" etc. Ones things for sure, he's not as bad as he's shown at OT.