Aguero - Can't link up with anyone even if his life depended on it, and injury prone
Higuain - Can link up with others, but also manages to choke whenever it matters
Tevez - The player of the people. Yet always underachieved and got a disastrous record with the NT
Di Maria - Such a World Class player that his entire career has been marred with inconsistency and a display of pathetic decision making
Lavezzi - He can run and he can run a lot which is useful sometimes, but that's where it ends
Pastore - I've personally always rated and liked him since his Palermo, but he's too selfish a lot of times. Would rather go on his solo raids like he's the reincarnation of Maradona and Pele in one rather than play a simple pass. Also suspect decision making
Banega - Got so much talent, but is as dumb as a brick. His career is an example of that
You can fill in the rest.
I don't think changing the coach is just enough. National teams rarely have any rhythm and time and time again we have seen that messi doesn't perform at his best without that. Possession is not enough, he needs to get the ball in better places and players should make effective runs to help him. Don't just give him the ball and ask him to do some magic. He doesn't train with his international teammates daily. Their chemistry is clearly lacking. One of the reasons why Germany and Spain played that good recently is most of the players are used to same philosophy. Bayern is the backbone of Germany and barca is for Spain. What is the identity of Argentina? They are lucky to reach finals the way I see it. Messi can perform in any team but that team needs to have some identity. He is not your average physical player who could just battle around for the ball and run like a headless chicken. I have never seen maradona and Pele play... But I would like to know if those teams were this clueless especially maradona team. Any team becomes shite when you remove Pele or marodona type of player from your team. No one will argue that but what I want to know is the team working for them or just like this Argentina everyone doing their own stupid thing without any idea of what they are doing? When I see barca I know the team is build around messi, I just don't feel the same with Argentina.
In the WC Qualifiers under Sabella, they were playing really well. Then came the WC where majority of the team were out of form and in a bad physical shape, including Messi who came off a year with another hamstring injury + Tata's BBQs. They didn't play well in the WC, but they did better than this team which just looks all over the place.
Argentina need to rebuild and they need to start right now and that should start with a change of coach. Get rid of Tata, bring in Sampaoli. Do whatever it takes to get him remove all the passengers in the team. The focus should be on the 2018 WC and solely on that.
In the 2010 WC they had Bielsla who had a project, Sampaoli has build on that and perfected it. Chile were impressive in 2010, but now they're on another level.