The Los Angeles Times reports longtime ABC News president David Westin has announced he is leaving at the end of the year. No successor has been named. Deadline posts the email he sent to co-workers and Disney-ABC TV Group president Anne Sweeney’s announcement of Westin’s departure. Various reports on Westin’s departure share the circulating rumor that a group such as Bloomberg could takeover ABC’s news division while other rumors link CNN and ABC in a newsroom partnership.