Jay summed it up nicely.

4-3-1-2 would work in Serie A maybe, not in PL.

Theo and Gervinho can both play SS, as can Poldi. Giroud and Chamakh in center makes it the 5 you want. Ramsey can provide another rotation here.
1 can be Rosicky, Wilshere, Ramsey, Diaby, Ox and also Arteta. Versatile players make that possibe.
3 would be effectively DM + DLP/B2B. Frimpong/Coquelin/Song + Song/Arteta/Ramsey/Wilshere/Diaby/<Rosicky>

Wenger will not switch from 4-2-3-1 just yet. The above would work in FM or FIFA, but we'd severly depreciate our chance creation and scoring in a bid to reduce that 49 conceded goals.

keeper
back 4
arteta song
rosicky/diaby/carzola/
walcot/gervinho Giroud Podolski/


we need the song arteta combination. arteta always complements song.when wilshere is back i think we should play a 4-2-1-3 formation. give him a free role, him or carzola.