There’s no shortage of speculation about which NFL team might relocate to Los Angeles, despite recent news that Anschutz Entertainment Group, a leading force in the development of a downtown stadium, has been put up for sale by its billionaire owner. But for all the excitement in the nation’s second-largest media market about the return of the pro game after nearly two decades, history suggests that not all franchise moves work out quite as planned. Exhibits A-J: The five best and five worst pro franchise relos.