Interesting............... A good friend of mine was working with GEC at the time of the AEW Nimrod program. His big gripe was that the RAF changed the spec each time GEC had the equipment sorted to the last spec, as for upgrading the equipment GEC found themselfs obstructed by BAe who were very slow to react to any of the changed requested by the RAF.
Looking from the outside IMO it looks like The RAF, BAe & GEC all pulling in different directions and blaming each other for the problems, you can't help thinking that the people paying the bill should have imposed better management................. but that would require a civil servant to take some responsability!