I&#x27;m not sure that it&#x27;s not possible for top rate researches to teach at attached universities if they care to. There&#x27;s plenty of professionals who work in the commercial world and teach a class or two a semester because they love it but hate working in the academic world -- I work with two PhDs who do exactly that.<p>Anecdotally, many of the worst teachers I had were researchers in their field. It was clear that they wanted to just research in their field and teaching was something the school forced them into doing and they did the bare minimum.