Plain Useless

It seems to be well known that the Ministry of Defence asks for tenders for a new project and having awarded it to some lucky company, starts switching the specifications in a totally demented fashion so that everything zooms over budget and beyond the delivery date.
    If this is so well known, how come the government doesn’t have the good sense to sack the entire crew at the Ministry of Defence and start again with people of proven intellect?
    They could almost abolish income tax with the savings.