Any Improvements to my MUFC squad?

De Gea GK
Rafael FB
Vidic CB
Ferdinand CB
Evra FB
Nani W
Sneijder AP
Cleverley B2B
Muniain W
Rooney CF
Welbeck P
There's my starting XI, anybody got any improvements?, anybody I should buy anyway?

Perhaps a better defensive CM, and a backup CB. Also IMO Muniain is better as a striker and better than Welbeck

Put Muniain as a poacher , Rooney a CF / AF , change Cleverley with other players ( except you are in 2014++ season )