I think you should look at Pastore is also a good half
Muller T would be a good wing ... Iker Muniain also a fine young man for the future I'm holding it in my save with Man City
Jovetic is also a good player
As Rooney was aging and losing effectiveness leading the line, I retrained him as a left attacking mid set as an Inside Forward in a 4-2-3-1 Formation, with a more poacher oriented striker (i.e. Damiao/Cavani/Fierro) leading the line. It worked well on my Man Utd save. Rooney chipping in average assists and normally long shot goals. Thought you could give it a try if on a dead end.
Otherwise, Iker Muniain would probably be your next best choice after Gotze. In my Utd save I managed to get a young Dutch regen wonderkid winger, and they develop fast. You might want to try some extensive scouting.
Lorenzo Crisetig 950k
Albin Ekdal 5mil
Both will be amazing midfielders.
Crisetig may look pathetic but if you want I'll show you his stats