Great point David, a comment from my blog--
5. Try to eliminate your own job
I actively try to eliminate every job I have. I identify all inputs, outputs, and processes. I determine their use and value. I try to streamline, eliminate waste and duplication, improve efficiencies, and combine processes. I do my level best to eliminate what I do. Everytime I do this, what happens is that, instead of getting rid of my job, people start giving me more work. At the same time, I gain a reputation as a producer, problem solver, and contributor to business success.