When Dick Costolo took over as CEO of Twitter, his advisor Bill Campbell joked that if you set off a bomb at 5 p.m., only the cleaning people would get killed. Costolo wanted to change the culture to encourage hard work. Costolo himself is a grinder. After having dinner with his family every night, he’d go back to work and make himself available to anyone who was still there and who wanted to get something done that needed his help. Pretty soon, a lot of people were working longer hours and getting more done. If Costolo wasn’t the type of person who could focus and be effective for very long
...more
