I remember a couple of years ago people didn't exactly go all fuzzy over James Rodriguez when we were linked with him and almost signed him for 5 million €. Instead people were against it, because we were all in love with "the new Nedved", Sir Milos Krasic, and we didn't want our only non-EU spot to go to a unproven player etc.
It's not always the biggest names or the ones we as fans know best, and the names that creates the most moistured panties, that will turn out to be the best deals... I believe the club have done some serious research, we don't just splash 20 million + on a player because he had a few good games... So IF we actually get Iturbe, i think we will at least have to give him the chance before laughing at the transfer..