LadyAtco - when you say NATS needs to cut ATCO salaries I think you insinuate that NATS overpays it's ATCOs compared to those operating on a more commercial basis. And in some cases this is indeed true. Not sure it's the case with DFS though.
Interesting to note that DFS runs on a totally not-for-profit basis, unlike NATS, and is wholly owned and subsidised by the government, unlike NATS.
Perhaps actually it is DFS that aren't quite competing on a level commercial playing field.