I think it could be more fluid, and actually trying to pin it down into a simple diagram might not do it justice.
Maybe something more like this on defence:
Moss
Fenton Siggy Dura Manny
Lia Riera
Roly WeeMac
Krishna Sarpong
On attack, if both the fullbacks advance then one of the DMs drops into the backline and Roly and WeeMac tuck into a more central role:
x
x x x
x
x x x x
x x
If one fullback advances (most likely Fenton) then an AM (most likely WeeMac) drifts wide and plays as an auxillary winger ( a false 11?) and then Manny shuffles across to make a back 3 again:
x
x x x
x x
x x x
x x
I think WeeMac has alway looked better in a wider role too so that last shape would suit him