PN - you wrote
AFAIK there is no central organisation of display directors though I imagine there is informal discussion between organizers of good displays and bad ones, good pilots and bad (and speaking from experience I am not referring to their flying - no names no pack drill). In the military it will probably be boss to boss. In the civie world a dry up of bookings.
Perish the thought, but I think you may be a bit behind the times. The British Air Display Association (BADA) includes amongst its members most flying display directors (FDDs). Next week BADA holds its pre-season symposium, in conjunction with the CAA and the Military Aviation Authority (MAA). The post-Shoreham situation and what the CAA is doing about it will undoubtedly take up much of the two days of the symposium, and FDDs will be expecting to learn a lot about how things are going to be in future.
Your idea of military bosses whispering hints in each other's shell-likes is also a little out of date. The MAA is deeply involved in air show safety, and military display flying is regulated in minute detail.
In any case, although there are formally-constituted military display teams - and they appear at shows of all kinds - there are almost no military air shows left in the UK. Last year there was only one RAF air show, and that was Cosford. There was also RIAT - run by the RAF Charitable Trust, but it does come under MAA's aegis. And there were also, of course, the Navy shows at Yeovilton and Culdrose.
airsound