If you told me that there aren't enough doctors for rural areas, I for sure would support looking at if the incredible requirements are acting as too much of a barrier keeping qualified people from practicing. But, in the case of teaching I feel very little is gained in the academic setting past a certain point when compared to being in the field as a paid teachers assistant.
But if you think nainoa Thompsan just has mastery of the subject and doesn't know how to teach, well I don;t know what to tell you. certain jobs by their nature require people to be good teachers for them to succeed. I would say John Wooden could teach any subject he was knowledge in for another example.