I agree with the key point that "Not everything is in the act of disrupting or being disrupted." There are businesses that can maintain incremental improvement

I agree with the key point that "Not everything is in the act of disrupting or being disrupted." There are businesses that can maintain incremental improvements for a long times, especially in services. The folks mowing my lawn and doing the dry cleaning don't seem to be in need of disruption as much as improvement. (ok - so I don't have a lawn, and my dry cleaner is ok, but the point is the same) On the concept of Christensen cherry picking his cases... Well, that's what they do at HBS. They use the case method to explain things. It works for strategy, which is almost impossible to quantify anyway. (Too many moving variables, and the answers seem obvious afterwards) For proper economics, that's another story. Go to the University of Chicago instead.