I am _seriously_ tired of books and blogs and TED talks telling me how to grow a business. I want to know how to _sustain_ one at a comfortable level. My dentist isn't looking to 10X his practice; neither is my accountant or my lawyer, and they're all (a) happy and (b) not regarded as weird or as failures. Where are the best-sellers on how to maintain a business until you're ready to pass it on to the next person?