That is interesting. I've been working in the field professionally 20 years (I'm not including grad school or postdocs) and every manager I've had had technica

That is interesting. I've been working in the field professionally 20 years (I'm not including grad school or postdocs) and every manager I've had had technical skills (deep ones) although most of them couldn't have done my job exactly the same way I did. Some would have done it better. Others, worse. Even others- would have cancelled the project, or morphed it into something else entirely.