After nearly 29 years at the Chronicle, sportswriter and columnist Ira Miller announced in this morning’s edition (Feb. 16) that he is retiring. “It has been a good run, made that largely by the intriguing characters who populated the pro football scene for the last three decades,” Miller wrote. In this pod cast, Miller talks about the changes he’s seen in the NFL during his careeer, especially covering the 49ers and Raiders. Miller didn’t say in his final column what he plans to do now. He is the past president of the Pro Football Writers of America. He was the 1993 winner of the Dick McCann Memorial Award for his coverage of pro football and he has a plaque hanging in the NFL Hall of Fame in Canton, Ohio.