Dick Costolo
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Jack Dorsey named permanent Twitter CEOJack Dorsey, co-founder of Twitter and Square, has been named Twitter's permanent CEO.MoneyOct 5, 2015
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Twitter is only considering CEO candidates who can make a ‘full-time’ commitmentJack Dorsey would have to give up his post at Square if he's to become CEO of Twitter.TechJun 22, 2015
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Twitter’s trials and tribulations: What will it take keep it alive?Despite the buzz generated by thousands of chatty journalists, athletes and celebrities, Twitter has never turned a profit. Here are some of Twitter's most pressing challenges, along with possible fixes.TechJun 15, 2015
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Dick Costolo steps down as Twitter CEOTwitter CEO Dick Costolo is stepping down and co-founder Jack Dorsey is temporarily taking the reins at the social networking service.TechJun 12, 2015
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Twitter COO Ali Rowghani resignsTwitter's chief operating officer, Ali Rowghani, has resigned from his post and won't be replaced.TechJun 12, 2014
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