What a great story about this woman, a psychologist no less, who took on a new field of study and became successful at it. I like how the internal and external factors are considered. One of my first articles on Medium was about a methodology for the S.W.O.T. analysis. I broke down strengths and weakness as internal factors that you have the control to change or improve. And the opportunities and threats are external factors that we don't really have control over but we can take advantage of or hedge against. Hedging in and of itself allows us to take some control over external factors of which we don't have any control.