messi can't do it alone they just don't have the midfield or defense to compete
True, they don't have a great defence and their midfield isn't in the same league as Spain's for example, but they've got some good midfielders and they should certainly be capable of passing it around better and controlling games.
A 3 man midfield made up of either Mascherano, Biglia, Banega, Paredes or Di Maria should be able to compete. It's a better midfield than England's, that's for sure. Santiago Ascacibar should also be on the fringes at least. Play Mammana in defence and they'd really start to control possession. Sampaoli is so blinkered in his selections.