But in a boost for Liam Fox, the Defence Secretary, the Treasury now believes his plans to overhaul the management structures of the MoD and the Armed Forces have reduced those risks. A senior Government source said that the MoD’s place at the top of the list had recently been taken by the Department of Work and Pensions and the Universal Credit plan. “There is a lot of concern about this in the Treasury,” said the source. “This is causing real worries at the top.”