He was poor and will get the brunt of the blame, but Iniesta, Rakitic, Pedro, Neymar, etc were just as bad. This one falls on Lucho's shoulders.
Under Tata people complained that Messi played too far upfront, but I'd rather have than than have the best forward in the world play as deep as he has been playing lately. It's a waste. Sure he can bag assists, but he can do so much more and he's too far away from the opposition goal.