Not sure you should build around Scholes and Berbatov. Paul's attributes decrease alarmingly fast and he requires alot of rest. Dimitar is way too inconsistent on the game too, plus he's on high wages, so I'd get rid of him if I was you.
You should definitely keep the trio of wingers, Nani is of course a dangerous player, while Valencia & Young are assist machines. Keep the Da Silvas, Jones, Smalling, Cleverley and Welbeck, they all turn out great. In the academy & reserves, if you train & use them correctly, Tunnicliffe, Pogba, Will Keane and Januzaj can turn out well.
My advice would be just make one big name signing for the midfield, M'Vila for example.