I'd like us to play a proper 4-1-4-1 if we can sign a decent DM. Flamini as cover is fine, and we can also throw Arteta there if we're in control and want to slow things down a bit.
Ramsey next to Ozil, with Alexis and Walcott on the wings, and Giroud doing what he does best.
Wilshere, OX, Cazorla, Rosicky, et cetera fighting for those 2 positions, and wide positions if Alexis and Walcott pick up injuries, gives us some depth.
The key is, of course, the DM.
Would Carvalho fit the bill?