Wrong people doing the wrong things at the wrong time. Vested interest of a large number of arrogant people that continue to think that they know what ATC is all about, better than any ATC staff, even though they have never 'done it' themselves. £1Bn and a heap of poo later.
The people that have been bought in in the last couple of years are doing an excellent job of trying to sort out this thing.
The REAL changes will come when the 'originals' are gone and operational staff get their hands on it.