I wonder what innovation DFS can bring realistically ?
How's about German ATCOs, for starters?
Okay, maybe not, but there's plenty of UK licenced ATCOs currently working overseas who may be tempted back for the right package. I'm sure they wouldn't have too much of a problem validating at KK. Trouble is they would cost a great deal more than the present incumbents.
The upside is that the current KK controllers who didn't want to stay at KK with DFS would find plenty of opportunities overseas, particularly in "the Gulf". No tax, but no pension either, but at least you can plan on it being dry for the "barbie".