It would be a real shame at the moment to hinder the burgeoning Cazorla / Gibbs / Podolski bromance by swinging Santi over to the right.
If Diaby continues to produce solid but sub-Liverpool performances there's an argument we could line up as:
.
Szczesny
Jenks/Bac Kos/Mert/Verm Gibbs
Arteta
Wilshere
Ramsey
Cazorla Podolski
Giroud/Gervinho/Walcott
ie still our sort of 4-2-3-1, but with Ramsey more a conventional winger, Podolski more a striker, and Wilshere and Cazorla wreaking havoc and spraying passes in the centre. A formation that we've already seen can work well with Diaby in place of Wilshere.