This advice works well in the very early stages of a startup, but focus is needed once you have done your "market research." To continue the analogy, you shoul

This advice works well in the very early stages of a startup, but focus is needed once you have done your "market research." To continue the analogy, you should not date more than one girl once you are going steady. If you want to read more about this shifting from a broad to a narrow focus, I highly recommend Crossing the Chasm by Geoffrey Moore. http://www.amazon.com/Crossing-Chasm-Marketing-High-Tech-Mainstream/dp/0066620023 http://www.amazon.com/Crossing-Chasm-Marketing-High-Tech-Mai...