If he had a better attitude,he would've won a couple of Ballon D'or's by now.His talent made him entitled.Still had a pretty great career but he could've done so much more if he had put in that little extra effort along with being humble.No wonder he couldnt get along with Poop.
I've read the book and he generally has good things to say about Juve in some of the other parts of his book.