I would like to see this lineup against Switzerland:
--------------------Romero-----------------
-Zabaleta---Fernández--Garay---------Rojo-
---------------Pérez--Mascherano----------
-Di María-----------Messi-----------Lavezzi-
-----------------Higuaín------------------
Gago hasn't really impressed me, he looks uncomfortable with the ball and offers no creativity at all (Except that one great pass to Higuaín, against Bosnia I think). And he doesn't give that much defensive protection, one could expect. I feel like Enzo Pérez would be a better fit.
Di María and Lavezzi helping out their fullbacks dealing with Shaqiri and their two offensive fullbacks Lichtsteiner and Rodriguez.
The Swiss defense has looked shaky, I hope they can exploit that. Higuaín really needs to step up!