Don't know much but I was surprised that Dominic Cummings was going to be sorting out the MOD in the near future , don't you need to be qualified in the subject to do that sort of job ?
You don't need qualification to run/manage/sort out any particular department. You just need to know the government's policy, and have an ability to distinguish between advice which is good and that which simply pushes the adviser's agenda.
'have an ability to distinguish between advice which is good'
But how do you do that with virtually zero knowledge of how the armed forces work? (which, I admit, is just a rehash of the original question but, as it doean't seem to have been answered........)
MOD procurement has been a disaster for a long time. It was no secret. Service chiefs have long complained. Hopefully it will now be sorted pdq now Brexit is done and dusted almost.
You judge the adviser. Body language, way they speak, plus a search for what they may want to push, beforehand. Managers jump from place to place with those sorts of skills, regardless whether they have specific expertise in the new job area.
Don't Know if Cummings has any Military experience, but judging by the down and out way he dresses , I think he ought pay a visit to The Salvation Army Charity Shop.