I agree with other posts. It's the increasing prevalence of short-termism. Most companies in the world now are going through a big consolidation process on a

I agree with other posts. It's the increasing prevalence of short-termism. Most companies in the world now are going through a big consolidation process on a scale unheard of in the past, in preparation for when things go very bad in the near future due to several accumulating factors. This means is that companies are increasingly designing themselves to be sold; to be valued higher, so that when they get bought by the biggies, the 'Boys Club' (Seniors, Chiefs, etc.) get more money in the end. This means companies are acting more for the quick sell rather than having any kind of long-term plan for the future, and this means that a C.E.O.'s world view and opinion and plan for the company quickly become outdated and left behind, in favour for short-term company valuation increases. Also, one way of increasing your company's value is changing C.E.O.'s more often, since it shows your company is "pro-active" and "progressive", and gets you in the news a lot.