There was a study asking men to select the female face they found the most attractive. The researchers then tried to create the ideal female look. However, they just ended up creating something very close to the average of all faces in their database.

The key to success is to know your weaknesses and compensate for them by hiring the right people, combined with a large amount of luck. For example Mark Zuckerberg didn't deliver a marvel of Engineering when he developed what would later become Facebook. He was just there at the right time and place.