It's a term of art reserved for those who are domain experts on a given policy matter or subject who are granted control over that area. Chairman of the fed wou

It's a term of art reserved for those who are domain experts on a given policy matter or subject who are granted control over that area. Chairman of the fed would be a good example. It doesn't have to do with technology so much as technique. Generally the more blatantly a role requires domain knowledge, the more likely it is to be given to a technocrat as opposed to left for political debate.