Peacetime CEO always has a contingency plan. Wartime CEO knows that sometimes you gotta roll a hard six. - Ben Horowitz

Specifically, the following things that cause no trouble when you are small become big challenges as you grow: Communication Common knowledge Decision making

Learning to make this unnatural motion feel natural takes a great deal of practice. If you do what feels most natural as a CEO, you may also get knocked cold. Being CEO requires lots of unnatural motion.

Be aware that management books tend to be written by management consultants who study successful companies during their times of peace. As a result, the resulting books describe the methods of peacetime CEOs. In fact, other than the books written by Andy Grove, I don’t know of any management books that teach you how to manage in wartime like Steve Jobs or Andy Grove.