It is not a subject for a 2 year tour. It is a vocation.
Indeed it is, or should be. I've always been of the opinion that there is an endemic flaw in the way that the RAF has traditionally allowed fundamental, long term decisions to be made by those whose main intent is looking good in the short term to facilitate a rapid personal rise to the top.
Having known the man for many years, I would by no means include Andy Pulford in the latter category, btw.