No development methodology or project management style is going to help you if: 1) people are not telling the truth about their progress and 2) the project has numerous stakeholders (or a revolving door of stakeholders) with conflicting goals pulling the project in different directions.
From the article:
"[...] back in September they were telling us everything was great then too: so either they were lying then or they are lying now or they have been lying all along"
From another article:
"The senior management responsible for delivering the programme has also undergone a significant overhaul in recent months, with UC programme director Hilary Reynolds being the latest figure to be taken off the project after just four months in the role."
"[...] esponsibility for the framework is now being moved to the Government Procurement Service – as we've always said it would."