he hired one of his close to becomeick costelo, the chief operating officer. jack had been putting together a coup to have evan williams fired from the company. one of the people he brought into this accidentally was dick costello. he knew that his friend evan was going to be fired, but the board asked him to run the company. out, itan was pushed became the ceo. k became the ceo. but how long did you spend following around these characters? spent hundreds of hours tracking down people who knew them. i would to look for the cleaning lady for a while. i spent considerable amount of time with all of the founders. up 65 hours just with the founders and board members alone. to thousandscess .f documents and e-mails that helped of the reporting. the thing that was fascinating for me as a reporter with the fact that the tweets that these people had found, all these founders, became one of the most important tools for my room orting. , jack, time with ev noah, but their memories have changed over time. thingsre instances where were drastically different. things that d