Vaz Té is an interesting story. I am a huge, huge fan of him, even though he has his detractors who say he can't perform at the top levels. Part of why I am a big fan is his abilities -- creative on the wing or behind the box, limber for a big man, and great sense of position in front of goal (some mean headers). But for a number of countries, he doesn't offer what they can't already get in native skills from the locals, etc.
But in Portugal, he brings a whole different dimension. Out on the pitch, I can best compare him to a basketball power forward -- physical strength, size, and yet the dexterity to move around and move the ball around. Something that nobody in Portugal really offers in front of the opposing goal -- I mean, Pauleta? Nuno Gomes? Helder Postiga? Even Hugo Almeida for that matter. So what happens is the team plays very differently with him on the pitch -- not unlike what Deco does to their adult squad's offensive midfield.
I would never consider him for Juve at this stage (he plays bench for Bolton for crying out loud). Part of what's great about him is the unique role he can play where Portugal has no other. Juve can import that a bit easier. But who knows as the guy develops -- he's still young and still strikes me as pretty unique. Definitely one of my favorite players in the sport, however.