Just saw your post about GMB and Sussex Ambulances. Note in the article you referenced they talk all about it being caused by Clinical Commission Groups (i.e. CCG's).
CCG's took over from Primary Care Trusts. They are run by the local GPS. The 'wide-boy' GP's are getting stupid rich out of the CCG concept. Three of my local GP's made a couple of million pounds out of it each.
CCG's are also the reason that A&E's are overloaded. They outsource out of hours GP cover to private companies. The private companies then, when taking calls, try to get patients to answer questions when they phone for a GP in a way that the service can define it as an emergency. That way they don't need to send a GP which is what they are paid for they just farm it to the Ambulance service. Voila, Ambulance and A&E overload.
I'll open a thread to detail such after the Ref is over.