Yeah I've noticed it as well. I suppose it's because the GCHQ can't necessarily pay enough for very talented individuals who are required for certain work, wher

Yeah I've noticed it as well. I suppose it's because the GCHQ can't necessarily pay enough for very talented individuals who are required for certain work, whereas defence companies are somewhat poured with funds. I've heard that a popular path is to start in the government, then to the private sector to earn bank, and then back to public.