Saw him vs Blake @ Stockholm Open, he can play on carpet.
I mean that Gaudio's game is not for fast courts, he is not very interested in playing carpet tournaments, so average but decent players like Greul can eat him for lunch... Not to mention that if Gaudio's game isn't on, he usually doesn't care too mych what he delivers on court...
I know that. But he is just two class above Simon, he had better results on carpet than Simon who never go to the second round on atp carpet.
The reason why Gaudio loosing is that he is jerk, he is currently out of tennis, and every idiot can beat him.