Yeah he has.
RVP and Falcao are on and off. Falcao has done okay when starting. RVP had that little run in the big games and he usually does well in the important matches so he'll be hard to drop.
Against Southampton, I'd go with:-
---------------- De Goat ----------------
Jones - Smalling - Evans - Shaw/Blackett
----------------- Carrick -----------------
----- Rooney ---------------- Di Maria ------
------------------ Mata ------------------
--------------- RVP - Falcao ----------
Or drop one of the strikers for Herrera and push Rooney up front.