The Pistons selected Bruce Brown of Miami in the second round Thursday and traded for the rights to second-round pick Khyri Thomas of Creighton. Detroit used the No. 42 overall pick on Brown. Thomas went to Philadelphia at No. 38, and he was traded to the Pistons for two future second-round picks.The 6-foot-3 Thomas averaged 15.1 points last season and shot 41 percent from beyond the arc. He started 96 games in his three seasons at Creighton.