"GCHQ can compete on the value of our Mission"
Sadly GCHQ can't compete on the value of their mission because the public is not allowed to find out what GCHQ actually achieve, so that's a non-starter.
So we have a bunch of folks who are beyond the law grooming a bunch of minors at a summer camp with the promise of better pay and a never-to-be-repeated-in-public mission statement... What could possibly go wrong ?