Really, this is one of the persistent problems with MLB- the NBA, NFL, NCAAFB, etc have all acknowledged that in today's game, there are simply times when the officials aren't able to be in a position to make a correct call, due to the speed of the game, blocked sight lines, or whatever and have replay as a fall-back to make things right. MLB is plagued by not only umpires that simply don't have the ability in some cases to make the call from a few hundred feet away, but also the stunning ego and fragility of the umpires and their absolutely stunning refusal to acknowledge that they can and sometimes do get calls very, very wrong.