Titans coach Mike Munchak has fired offensive coordinator Mike Heimerdinger as he starts to remake his coaching staff a day after taking over the top job. Two other assistants were fired as well. Heimerdinger is continuing cancer treatment after diagnosed in November. "It's never easy to be fired," Heimerdinger said. "He has to do what's good for the Titans, and Munch will do what's best for the Titans. I appreciate my time here, but it's never easy to be fired."