I don't know why they need these challenge flags...that just adds to the delay (it is ridiculous in the NFL). Just have a guy in the booth watching the plays. HE can signal to stop play if he needs to look at something twice.
And to the managers get full replays in the dugout - or will they put a coach in the pressbox on a TV monitor. YOu can't count on these stadium screens...I was at Safeco last week, and sometimes they show the replay, and sometimes they don't.