He had great credentials as a "business of technology person", I mean, he brought the first digital HDTV system to market when he led General Instruments, and also was involved in Gillead developing a small molecule antiviral (Tamiflu) which is one of the hardest problems in drug development. Those alone make him a good candidate for the board of a company like Theranos. On the other hand he should have known that if you squeeze a little bit of juice out of somebody you are going to get lymph and intercellular fluid and be able to say very little about anything quantitative.

His involvement in the 2nd Gulf War calls into question his judgement on global affairs. SALT II was a real contribution and I am still scratching my head about how he kept the US out of the UN Law of the Sea which makes

https://en.wikipedia.org/wiki/Ocean_fertilization

possible.