Just watched Gary Neville's analysis of RvP on MNF, that our players aren't playing nearly enough through balls to find him. His runs have been very good but he does need to do more still. Another good point made was that Di Maria hasn't been as effective playing out wide, so he needs bringing back inside.
If we can get people fit I'd like to see us line up similar to Real Madrid last season:
---Herrera-Blind-Di Maria---
RvP------Falcao------Rooney
Obviously with RvP and Rooney in wider positions they'd be playing as inside forwards, cutting inside where possible and making runs in behind. Whether this will work or not is questionable, but I can't see why it wouldn't. We can build up the pitch using our midfield and wouldn't require a great amount of pace, the movement should be plenty good enough. Januzaj could fill one of these positions, and Mata could slot in somewhere if we needed to break down a packed defence. Rooney can cross quite well with both feet (but rarely finds himself wide to do so), and would track back and cover defensively.
I think this might work better as despite all the praise, our attack needs adjusting as it's not creating enough clear chances at the moment.