I think O'Hara could be what we are looking for in a ball winning midfielder who'd be better suited centrally and although Williams has been utter pish he could offer us the balance we've been looking for on the left
With Kerr suspended I'd go 4-4-2 with
Bain
Hateley, Gadzhalov, O'Dea, Holt,
Gowser (right mid), O'Hara, Vincent, Williams,
Haber, El Bahktoui (last opportunity)