What exactly will it take for Don Mattingly to realize JT Riddle can not play the outfield? He cost the Marlins last night's game by chickening out at the wall in the 9th--and on his first chance just now, he veered sideways instead of back to give the Braves a gift double. It's not exactly that he has a booming bat they need in the line-up. He's hitting under .200.