RandBall: MLB’s ‘robot umpire’ challenge system is the wrong choice

Major League Baseball will make its initial foray next season into “robot umpires,” a rather hilarious term that conjures up images of Star Wars droids barking out ball and strike calls but is in reality a system of precision cameras.
In the rule that will be implemented next season, teams will get two challenges per game (more if it they go extra innings) to ball and strike calls. Only a batter, pitcher or catcher can signal for a review, which will trigger a quick process to see whether 12 powerful cameras determine if the call was correct.