MLB now will oversee use of humidor balls at Coors Field following conversation with Giants. Starting tonight, umpires are to closely monitor process in which balls are humidified, transported to Rockies' dugout to pitcher's hand. Joe Garagiola, VP of on-field operations, has ordered Rockies to let umjpires have more say in process. Ball bag to be eyed at all times. Giants spoke with MLB BEFORE lincecum was caught on camera saying "juiced balls." Dinger, I'm watching your ass!