The conversation between human and AI assistant.
What is it like to report to Dick Costolo at Twitter?
That's interesting. Did Costolo make any significant changes to Twitter while he was CEO?
Definitely. Costolo oversaw some major changes at Twitter, such as the introduction of the "Promoted Tweets" advertising platform and the acquisition of companies like Vine and Periscope. He was also known for his focus on video and worked to establish partnerships with major media companies like ESPN and the NFL.