Over-reliance on Messi may cost South Americans as he can't prop them up forever
Much has been made of Brazil's unsteady start to this World Cup, but Argentina have barely been any more impressive.
Single goal victories, largely inspired by Lionel Messi, have kept them on an even keel, but they will need to be careful when they face Switzerland in today's second round clash.
Ottmar Hitzfeld is as cunning a manager as you'll find in world football.
Hitzfeld retires at the end of this competition, and now goes into every game knowing that it could be the last of his career.
This is a man who, among other things, was only the second manager ever to win the Champions League with two different clubs.
He is not going to slip into retirement quietly.
Argentina would do well to lessen their reliance on Messi. Of the six goals they have scored, the Barcelona man has hit four of them.
Manager Alejandro Sabella is yet to find a way to draw all of his talents together in harmony with his star man.
There's so much ability in the team, but it tends to bottleneck in the middle with the only variety coming from the fullbacks Pablo Zabaleta and Marcos Rojo.
With Sergio Aguero injured, it's likely that Gonzalo Higuain and Eziequel Lavezzi will flank Messi and Sabella will have to hope that Lavezzi, in particular, can supply some width.
Messi made his own slow start to the tournament in a miserable first half showing against Bosnia, but he put to rest any doubts about his condition with one of the goals of the tournament after the break.
Another match-saving effort brought victory against Iran before two more goals were added against Nigeria.
It's unclear what Hitzfeld's plan to deal with him involves, but unless it involves a tranquilliser gun and a large brown sack, it's going to be a struggle to contain him.
Switzerland, however, believe that they can count on a secret weapon, the backing of the watching Brazilian supporters.
Bosnia, Iran and Nigeria have all enjoyed the backing of the locals in their tight tussles with Argentina.
"I think we will definitely have the support of the Brazilian fans inside the stadium," said goalkeeper Diego Benaglio. "You can feel the rivalry between Brazil and Argentina here.
They also have a few special players of their own. Xherdan Shaquiri of Bayern Munich is a sort of rounder version of the Barcelona genius, stockier and not quite as mesmerising, but by any normal standard, certainly a first class player.
Uncomfortable with his role on the fringes of the Bayern Munich team, he's eager for a move and some regular football.
This tournament is proving quite the advertisement for his services. With Granit Xhaka performing equally well, this is not a Swiss side as drab as some of its previous incarnations.
The problems are at the back where the defence looks entirely unconvincing.
Honduras were not allowed to cause any trouble, but Ecuador breached them at a set-piece and France managed to put five past them.
Shaqiuri and Xhaka can haul the Argentine defence all over the park at one end, but there's no much they can do at the other, especially against someone like Messi.
Hitzfeld wants to bow out in style and while he is highly unlikely to do it with the biggest trophy of all, he certainly has it in him to cause a shock before he goes.
Argentina haven't been playing at their potential and the Swiss have enough players who can get in behind their fullbacks and cause problems.
This one will not be as one-sided as it might look.