No excuses. This Argentina team is just average. The only high point has been defense, and it's only obvious to remark that losing one of the top two defenders in the team can have an impact.
The only player that stood out from the bunch, IMO, is that kid Luque. He might be a kid to keep an eye on. Especially since the senior team is really missing some wingers.
That's the way Argentina has been for a long time now, especially in this category. Argentina has traditionally won with over-the-top talent over team play at this level:
In '97: Samuel, Cambiasso, Riquelme, Aimar
In '99: Cambiasso, Montenegro, Galletti, Peralta
In '01: Saviola, D'Alessandro, Maxi Rodriguez
In '03: Zabaleta, Mascherano, Tevez
In '05: Messi, Agüero, Gago
In '07: Di Maria, Agüero, Banega, Zarate
I'm not saying other teams don't win with team play. I'm just saying I don't expect Argentina to do so, and that hasn't stopped them from winning before. Now, this year it might be different because they really don't have any over-the-top talent in the team.
I think it's pretty even out there. Mexico played good games too. I thought Spain looks slightly above, but it's certainly debatable.