The obvious candidates include Alan Milburn, a former close associate of Gordon Brown's, whose stern-faced defence of the government's health policies has earned brownie points.
Since the August 2009 Democratic Party landslide election, Renho became a media sensation as a stern-faced yet young (at 42 she is the youngest member of the Kan Cabinet) representative grilling government agency officials over budgets and expenditures with puritanical zeal.