I would suggest that if you have service personnel having longer than the usual 2 year tours, you would find a lot of PVRs as that’s not really why they joined up. A longer time in post is almost certainly what is needed though.
As is proper specifications in the first place. Many a time I’ve been evolved in projects where the customer has wanted ‘something’ but we’re not quite sure as to what and left the supplier to spec it because they are the experts. What happens then, is one company gives them exactly what they need and the other company offers something considerably cheaper but exclude most of the things required (BAES?). They get the contact as it’s perceived ‘best value’ knowing full well that they will bump up the price when the excluded is included.
Worse is that they end up providing the finished product at a much higher price than the original company that offered it all up front and much much later.