Once Dorsey was addicted to Instagram, the product seemed so obvious and useful that he wished Twitter had managed to build it first. He asked Systrom if he would be open to Twitter acquiring his company. Systrom sounded enthusiastic. But Dorsey had spoken too soon. When he emailed Williams, telling him about the idea, the rejection was loaded with the bitterness Williams felt toward Dorsey personally. Williams was CEO and was still trying to establish himself as Twitter’s leader. Dorsey’s strategy was not welcome.