Social Media Twitter COO announces his resignation in a tweet Ali Rowghani had been feeling pressure over declining growth and some run-ins with top execs at the social media company. By Matt WilsonJune 13, 2014 SHARE Ragan Insider Premium Content Goodbye Twitter. It’s been an amazing ride, and I will cherish the memories. — Ali Rowghani (@ROWGHANI) June 12, 2014 To read the full story, log in. Become a Ragan Insider member to read this article and all other archived content. Sign up today Already a member? Log in here. Learn more about Ragan Insider.