As it turns out, Frank Darabont's firing as the showrunner of AMC'sdidn't just come as a surprise to the show's faithful fans, who had seen Darabont on a panel for the zombie series at San Diego Comic Con just days earlier. As documented in this in-depth, fascinating article in The Hollywood Reporter , Darabont had no idea he was about to be axed when he took the stage at Comic Con, and neither did the cast or crew of the show, who are now so terrified to talk about the problems behind the scenes that virtually none would go on the record for the article. As one insider grimly noted, "They're on a zombie show. They are all really easy to kill off."The story laid out in the article, though, is not that unexpected for anyone who has followed AMC's negotiations with both Matthew Weiner and Vince Gilligan, the respective showrunners of their massive hitsand. In short, the network is constantly trying to cut costs, which in's case involved demanding more advertising time and a smaller budget. For, they were asking Darabont to increase the number of episodes-- from the six-episode first season to thirteen in the second season-- while also slashing his budget. Darabont, the successful director of feature films like, didn't really take well to either network schedules or production practices; as one source said it, he is "notoriously a pain in the ass" for his approach.But that pain in the ass also madeAMC's biggest hit, far outpacing the critically acclaimed but underwatchedand. That massively packed Comic Con panel is all the evidence you really need thatis firmly in the cultural conversation, and as showrunner Darabont had a huge hand in that. Read the full THR article for all the dirty details about the tension behind the scenes, and also a ray of hope in the fact that new showrunner, Glen Mazzara, is an experienced talent who might be able to smoothly pick up the reins. No matter how talented he is, though, he'll be trying to replicate the successful formula ofbut with less time and less money-- a huge, somewhat inexplicable hurdle for a network to put in front of their giant hit. If the show suffers in quality in this second season, it appears we'll know the network is to blame.