Sept. 12 (Bloomberg) — Twitter CEO Dick Costolo discusses his relationship with co-founder Jack Dorsey and the importance of user growth to the company. He spoke in a March 25 interview with Emily Chang on Bloomberg Television’s “Bloomberg West.” Video two: Sept. 12 (Bloomberg) — Twitter CEO Dick Costolo discusses his management style. He spoke in a March 25 interview with Emily Chang on Bloomberg Television’s “Bloomberg West.”

twitter ipoJack Dorsey, Dick Costolo video embedded below