The quality of his throughballs has declined. Messi didn't play great in this game especially in the first half but he still managed to score a goal. So it's a good sign if a player manages to contribute even if he is below-par.
Not true, I have seen him give plenty of good trough balls in the last few months, its just that people have a short memory when it comes to these things, your only as good as your last game way of thinking.
Yet still, even today he gave a few good trough balls, the first pass to Tello that set up his goal and that pass later again to tello which he shot over the bar.
First have was poor but after the goal he improved overall from poor to decent in Messi levels.
What makes me smile is too see him at the right wing every now and then in the Milan game and today as well, reminds me how a great winger he was and still can be.
Still can pass his opponent very easily and set up good attacks.
It might be smart to play him there against defensively strong teams that crowd the centre making false 9 pointless.
At that point you need a real striker that can score(Villa) put Messi at the right and Tello on the left, imagine those wings(alba,Iniesta,Tello-Alves,Xavi,Messi), would certainly stretch the play and might give us a better chance than our usual approach.