There is an unwritten rule in business that once a company goes public, the original founders must be ousted. The myth: entrepreneurs are great for getting a company started, but not so great when Wall Street is looking over their shoulder. Part of this thinking is that founders of companies are mavericks, passionate doers with a vision, nontraditional in their approach to management and outspoken – the kind of rabble rousing that makes investors uneasy. (What is rabble rousing anyway?)