Argentina have big issues but I think they'll qualify in the end. Aguero takes the penalty they go ahead and Messi has had a solid 6/10 games and everything is rosy.
Their big issue is everything having to go through Messi makes them easy to defend against. Iceland did it easy, 3 men where Leo is, job done.
4 times I think Di Maria touch the ball and everytime on the wing when he could have crossed for Kun he looked to roll the ball back to the edge of the box for Messi. Everytime intercepted, I think when we look at the poorish records of Kun, Higuaín etc.. for Argentina maybe it times to realise they never get the ball.
For me Aguero was easily Argentina's most dangerous player today but rarely was he given the ball. It was more get the ball to Leo at all costs and as no.9 for them it must feel frustrating knowing no matter what run you make, unless the ball is coming from Leo, you're not getting it as it's going to him.
I fancy them to beat Nigeria who will be a bit more naïve, Croatia could go either way depending on how offensive and defensive they are.