Data Science Studying Data Scientists

Nice piece by Bob Hayes.   I like the structural aspects included.    Classification of skills can be imprecise too.  How does that imprecision influence the results.  The factor analysis, eigenvalue based approach used is well worth the read.   " .... Empirically-Based Approach to Understanding the Structure of Data Science by Bob Hayes, PhD    ... Based on a study of 620+ data professionals, we found that data science skills fall into three broad areas: domain expertise (in our case, business), technology/programming and math/statistics. I discuss the implications of study findings for current data scientists, would-be data scientists and the recruiters who try to find them. ... "