I have seen him play for Argentina and Villareal, and believe me he is a talismanic player on Pitch. The best part is he is not full of trickery as a Ronaldinho or a Cristiano but he does simple things correct like passing the ball to his teammate at the right time and taking some outstanding shots when the occasion comes. But i agree he didnt perform well that Quarter final night in the WC or the evening of Copa America final. I am not too sure if he will be there in the Argentina team in the next WC too. So instead of critising a master on the Pitch we just relax and enjoy his beatufil game on Pitch.
i call him the argentine tendulkar, always freezes in the final. but its a team game and most of the Argentines didn't turn up. Riquelme got countless corners and free-kicks but couldn't put a half-decent ball in dangerous areas. Brazil knows how to win tournaments plus football is in their blood and they have that extra passion when playing for their nation.