Twitter has hired NBCUniversal's senior executive Joe Benarroch in a role focusing on business operations. At NBCUniversal, Benarroch oversaw communication strategy for its Advertising and Partnerships division, and reported to incoming Twitter CEO Linda Yaccarino, who was advertising chief there before joining Twitter. "Welcome to the flock, Joe Benarroch...Let's get to work!" Yaccarino tweeted.