I agree that they are inexperienced but I really think we gained quality wise what we lost experience wise. Compared to 2010:
RvP: Much better form
Robben: Not injured and in need of some crazy voodoo doctor
Sneijder: Getting there but not his 2010 form
Nigel de Jong: Always solid
Clasie/de Guzman: Ok, they aren't Mark van Bommel but since we're playing with 5 defenders the attacking strength we gain with one those two suits the team better
Janmaat: Further in his development than van der Wiel when he went to the WC in 2010,
de Vrij/Martins Indi/Vlaar: All three of them aren't any less than Heitinga/Matthijsen
Blind: Ok, van Bronckhorst is obviously much better but I think Blind is decent enough and has played the past 3 seasons in the CL so he's got some experience.
Cillissen: 1st goalie at Ajax just as Stekelenburg was during WC 2010