Clarke, 49, is desperate end a run of three defeats in a row. And he defended his record at West Ham, helping keep them in the Premier League before owners David Sullivan and David Gold booted him and Gianfranco Zola out.
Clarke said: "There were a lot of extenuating circumstances at West Ham.
"We went with the promise we'd always have money to spend on transfers.
"But within a fortnight the Icelandic owner Bjorgolfur Gudmundsson's bank went bust and everything changed."