They are scared to play other than close down Messi. It is interesting how they are closing Argentina and moving the ball to Sneijder or Robben but it is not contributing in anything but keeping the score at 0-0
I would guess that the moment Holland move their line a bit up and attack with more men they will concede. They are not doing fast counters, they are not taking any risk at all, I mean after a rebound from a free kick, they don't try to cross again or do that surprising pass.