I have always thought that the hierarchical system used for doctors here in Sweden could be applicable to tech. Doctors here specialise in a field after some t

I have always thought that the hierarchical system used for doctors here in Sweden could be applicable to tech. Doctors here specialise in a field after some time of general practice and then some of them become "överläkare" (lit. superior physician), and have both deep expertise in their area but also some managerial responsibility for their department. Of course there is hospital administration etc, but the senior doctors still provide domain expertise and experience. Their criticism/opinions about practices at the hospital etc are generally respected, while they still practice medicine and assist in the most complicated cases.