Down here in Custard Country there has been TV coverage of the new facility at Devonport for refiting Trident submarines. There has been a MAJOR cost over-run, and a time slippage. A defence journalist was quoted on local TV as saying that a large part of the blame must go to -
"......The MOD, who have not only moved the goalposts, but also changed the rules of the game and threw in an hour on injury time as well."
The MOD changed the specifications during the construction phase. As I have said before, this, together with poor management, is what I think is the source of the UK's procurement woes.