It's now official. Katie Couric is leaving the HMS “Evening News” on a life raft, having skillfully piloted the newscast to lower ratings depths during her time at the helm. Equally liberal “60 Minutes” co-host Scott Pelley will likely take the conn, the New York Daily News is reporting : Katie Couric is officially leaving the “CBS Evening News,” and in the process opened the door for CBS officials to name Scott Pelley the new anchor.