The authors of Arxiv:1006.2312 study the effect of mentors on their protégés. The study is quantitative, resting its conclusions on measurable outcomes, such as professorships, publications, etc. But what about the mentor who is a paradigm shifter? The paradigm shifter maybe has one protégé, if that. The paradigm shifter does not get published in the mainstream publications, nor does his or her protégé. But the paradigm shifter and his or her protégé cause revolutions, which are what determine directions and the future course of physics. How do we find those mentors and their protégés? Shouldn't that relationship be one we foster and encourage rather than stifle?