Today marked the third time this season that I've noticed RR not challenging on a play that likely would have been overturned. This one was especially mind boggling because it came in the 6th inning with 2 outs. If Ron wins the challenge, the 6th inning continues and he gets another. If he loses the challenge, it's the 7th inning and the umpires will institute replay on close calls. On April 5th in Boston, Gomez was called out at home for the last out of the 4th inning when it looked like he got under the tag. Ron didn't even come out on to the field for this call. The ball beat the runner, but it looked like Gomez got under Pierzynski's tag. On Opening Day, in the 2nd inning, A-Ram was called out at 2nd base on a double play line drive by Overbay. In this case Roenicke came out to talk to Paul Schreiber about the play but never asked to challenge even though replays show that A-Ram was safe. So what is the advantage of NOT using challenge plays? These 3 plays deal with runners in scoring position. The challenge system might not be 100% perfect, but for the first time ever a manager has a chance to get his way on a wrong call. I don't know what the stats are, but I bet that it is more likely that a play gets overturned than it is likely that a manager needs more than 1 challenge play in a game before the 7th inning where the first challenge is overturned.