He's already one of the better players in Europe. Top 5 probably.
How many Euros have come over and been anything more than okay or decent players? How many of them have ever lived up to the hype/anticipation that surrounded them?
Mike
Really?
Off the top of my head, here are some current ones in the NBA:
Pau Gasol
Marc Gasol
Dirk Nowitzski
Tony Parker
Andrei Kirilenko
Danilo Gallinari (not all the way there yet, but was averaging 15 points per game for his career as a 24-year-old before tearing up his knee. But for the injury, he hasn't been disappointing.)
Some ones from years past include:
Drazen Petrovic (probably would be a Hall of Famer if he hadn't died at the height of his career)
Peja Stojakovic (maybe he's still in the NBA? His heyday was years ago)
Tony Kukoc
Vlade Divac
Detlef Schempf
Take that team of Euros in their prime years, and it's competitive with the 1992 Dream Team.
Those are the stars and superstars, from memory. I'm sure you could find a significantly longer list of players who've had very useful NBA careers if you wanted to take the time. Sure there are the Darko's and the Bargnani's (although he's been mediocre and overpaid, and not terrible). But there are also the Kwame Browns, the Michael Olawakandis, and the Anthony Bennets of the world too.