If Cloud Computing is going to be part of the critical network infrastructure of an enterprise, senior executives better realize that no technology runs by itself. You need people that are very skilled in all aspects of planning, designing, implementing and managing these systems. There are dynamic people and there are also caretakers that can only do minimum maintenance on systems.
The idea that you can run Cloud Computing applications with a bare minimum of skilled people is a nice sales pitch, but in reality organizations better make sure they have skills on staff or skills readily available in times of emergencies as well as day-to-day operations.