Time Warner's Turner CEO is departing post-AT&T merger

Time Warner (NYSE: TWX) is joining AT&T, but the leader of its key ad-based television network will not.
John Martin, the CEO of Turner, will be leaving the company as a result of the merger that was completed last week, AT&T's John Stankey wrote in an internal memo. Stankey is now listed as the CEO of WarnerMedia, the new name of Time Warner."We have a very talented and experienced team that is well-suited to address the new opportunities and emerging challenges we will face in the year