I don't see it as a problem. I would think Valencia is the one in most danger if both arrive. As to me this looks like a change of system is coming in. And Valencia is pretty limited in what he can do. What he does he does brilliantly. But Nani and young have more strings to their bows. So I can't see Nani being sold unless he says he wants to.
also seen people say we can do without him. Season before he was our best player. And at the start of the season he was on fire looking everybit the world beater we know he can be.
A three of him, Kagawa and hazard behind Rooney would have every top team in the world paying attention. Hopefully Nani stays and both are brought in along with another midfield to add some energy and grit along side Carrick