Whether or not somebody is a good teacher depends on your take on what exactly constitutes a good teacher.
Of course, for some a "good teacher" is a teacher who lets you sleep in class.
I actually avoided the word "good" but I did refer to the founder's title of "Osensei" as "great teacher". Just to clarify, I meant it as a title
, not a personal judgement on what constitutes a "good" or even a "great" teacher. Did he deserve that title because he had pedagogical skill or was it just for providing the subject to be studied?
By pedagogical skill I mean being able to successfully pass on what one has learned which can be measured to an extent, regardless of how "good" one thinks it is. If "good" must be used, let's do so for positive results.