Former WDA chief economist Brian Morgan questioned the assembly government's ability to deal with the bodies.

BBC: NEWS | UK | Wales | Quango staff fear for jobs

Professor Brian Morgan, a member of Hafren Power's regional board, the firm behind the scheme, said Mr Ferguson's comments were "preposterous".

BBC: Wales politics

Brian Morgan, professor of entrepreneurship at University of Wales Institute, Cardiff (Uwic), said the infrastructure and expertise to stage such an event was already in place.

BBC: Hopes raised for Cardiff Commonwealth Games bid