INDIANAPOLIS -- On the day he was hired as 49ers coach, Jim Harbaugh appeared in a navy suit with a red striped tie.Since that day, Harbaugh has shown an incredible lack of diversity in his attire. Every day, it's the same thing: a black "SF" microfleece sweater tucked into his khaki pants.Harbaugh has eight khaki pants and six sweaters -- all identical -- from which to choose. So why does he pick the same outfit every day?"It reduces drag," Harbaugh said. "I don't have to waste any time figuring out what I'm going to wear."But change -- perhaps subtle -- is on the way.The NFL is ending its long association with Reebok, the manufacturer that supplied teams with sideline apparel. Harbaugh might be wearing his Reebok sweater publicly for the final time this week at the NFL scouting combine.In April, he'll have to find a style of Nike sweater that appeals to his sense of fashion.