How many managers does it take to change a light bulb?

1) "I want a detailed memo about this issue till tomorrow's morning."
2) "You were supposed to have changed that light bulb last week!"
3) "We haven't got a policy on that".
4) "I am on my way to a very important meeting, so we'll discuss it some other time."
5) Three. Two to find out if it needs changing, and one to tell an employee to change it.