But one's ability to conduct research and achieve a Ph.D. in a subject area in no way indicates one's ability to teach others in that same, or another, subject.

But one's ability to conduct research and achieve a Ph.D. in a subject area in no way indicates one's ability to teach others in that same, or another, subject. Research skills do not equate to teaching skills - unless, perhaps, your area of expertise is in developmental and learning psychology.