Fly for fun has hit the nail right in the head. But I don't think he means it.
airpolice, I don't really know what you mean
My take on it, from a sedentary position, is that like big business one needs to cover all the bases, so to speak, with enough resilience to get the job done and have a contingency for unforeseen events. This I think is what NPAS is about. How they have gone about trialling scenarios and working the options I don't know, but as YME says, they seem to have thrown a hand grenade and ran away with no answers to any of the options on offer, consequently rumour is rife and people seem to be very nervous. An example of this is to announce all sorts with regard the eastern area with the Met not being on board???? How does that work with 4 aircraft for that region and in the middle is a relativley small area served by a further 3 aircraft restricted by the M25 as a barrier. This is my point when I said this:
It is the method and the assumptions that are being made that are the problem.
because there seems to be no real answers for that particular imbalance, and many others I am sure.