You only talk about numbers. I bet you didn't see any matches of him playing besides the ones against Juventus.
And there are a lot of other things that worry me about this signing. He's expensive, he's not very consistent, has stagnated in his development, isn't coming off the best of seasons, has big problems with injuries and I don't know if people remember but he missed the whole 10/11 season. Having all of these injury problems and missing a whole season before the age of 23 is a big red flag.
