People who advise entrepreneurs over a decent chunk of time tend to have the kind of world-weary perspective you'd expect from someone who has seen so many startups succeed or fail. They know what can scupper investment opportunities and turn off potential investors. Wayne Barz manages entrepreneurial programs at Ben Franklin Technology Partners of Northeastern Pennsylvania, an economic development program to foster new companies and job growth. It runs an incubator for life science and technology companies called TechVentures. In a blog entry for its website this week, he called attention to three things startups should avoid when talking to...