There's this bizarre impression people have that if Rooney somehow stayed up top, we'd be scoring way more goals.
Never mind the fact we had DCL doing exactly that, and only had one chance the whole game. A chance that came about because Rooney had dropped deep.
The reason Rooney comes deep is the help create play that leads to chances. Him standing up top whilst our midfield fail to string two meaningful passes together and retain possession won't do much good.