To say that he isn't capable of doing that anymore, or indeed, providing any sort of valuable contribution, is rash, devoid of both belief and support, and just plain wrong.
Yet, a growing group of scientists, including neuroscientists, primatologists, evolutionary anthropologists, and developmental psychologists, are revealing that the premise of these books, courses, and schools is justplainwrong.
First, as I was saying, and as EAK1 rightly emphasized below, it is justplainwrongand short-sighted because Monitor was a strategy firm just like McKinsey or BCG.