But there certainly is luck involved because you can do everything right and still not have a success. Entrepreneurs have to be ready for failure. And then John F. Kennedy Jr.'s plane went down and took over the airwaves, so his company lost some momentum. Companies also can get derailed by competitors hitting the market with similar products. But if you ascribe your success to your own brilliance, chances are good you'll lose all the money you just made.
Inventors also tend to have emotional attachments to their inventions.
CEOs need to be detached to be able to move on. That's the tool box they need to have. As far as temperament, entrepreneurs need to have dogged determination and can't be perfectionists. It helps also to have a sense of humor. The desire to go it alone is something that we can't teach, but if someone wants to go it alone, there are skills that we can teach here that will increase the probability of success.