Besides his goal, Messi was not really working, and there was no midfield to talk of until Sabella did something sensible and put Gago on the pitch. It improved Argentina a little bit, making them from bad to mediocre. The thousands of Argentina fans in Brazil really do not deserve this.
Bosnia-Hercegovina will be quickly forgotten in this World Cup. Had they had more quality and more passion, they could have done damage.
This was one of the poorest matches of the tournament, and I doubt whether Argentina can get past Nigeria playing like this (I know too little of Iran to give my opinion). The Nigerians will press high in midfield and are unforgiving up front.
The Rio de la Plata teams (Argentina and Uruguay) are positioning themselves to be the tournament's big disappointments.