The Detroit Lions have hired Jim Caldwell as their new head coach. Caldwell, who turns 57 this week, becomes the 26th coach in Lions history and the first to be African-American. Caldwell has been to the Super Bowl three times, winning twice as an assistant and losing once as a head coach. He was (26-22) in three seasons as the Colts head coach, going (2-2) in the playoffs. Caldwell has worked the past two seasons as an assistant in Baltimore.