'The Newsroom' has been a surprise hit for HBO, and the cable company recently announced that a second season has been greenlit for the Aaron Sorkin drama with the cast returning. Who won't be returning? The writers.

Sources tell The Hollywood Reporter that "everyone on the show's writing staff except for Corinne Kinsbury has been let go." HBO then released a statement to THR saying, "Every year each show reassesses the needs of its writing staffs. This process is nothing out of the ordinary."

Sorkin has been heavily involved in the show, especially the first three episodes. Despite the show's success with viewers, critics don't seem to like it. 'The Newsroom' is about the behind-the-scenes events at the Atlantis Cable News channel and stars Jeff Daniels, Emily Mortimer, Alison Pill, Dev Patel, John Gallager, Jr., and for some reason, Olivia Munn.

Sorkin created the award-winning drama 'The West Wing' and had recent movie hits with 'Moneyball' and 'The Social Network.' Replacing writers is nothing new in television, but with low critic scores and some wondering if it would last another season, HBO made some changes to get new writers in and give the show a refresh. We'll see if that translates to better episodes when the show hits the air for its second season.