Im not saying the giro field was weak im saying the 2010 vuelta field was weak.
Anton crashed out.
Andy was there for about 1 week before he got thrown out by Riis for breaking curfew. During that time he got dropped on a hill which half the sprinters made it over.
One could also say that Menchov was there. Did **** all apart from podium the time trial and come top 10 on a hill stage, but he was there, I guess
What was left was a Purito who had done already a full seasons worth of racing before the vuelta began, Schleck the weaker post collarbone injury, Peter Velits, Eze, Tondo

, Sastre post 2 other gts, Roche and 4 decent Caisse riders none of who was a real gt leader.
No way around it. A very weak field for gt standards.