If there was an additional replay or override umpire in the booth that could be in contact with the umpiring crew, it would barely take any time. If it eliminated the manager coming out kicking and screaming about some horrible call it might even shorten the game. I find nothing enjoyable about a bad call changing the outcome of a game...in fact, nothing frustrates me more. I felt horrible after that lazy ump blew that call down left field line in the D-Backs game a couple weeks ago. That call ruined the game for me and blew a shot at the Brewers winning. Imagine if there was no replay on that HR on Wednesday. We'd all be melting down right about now. Where is the enjoyment in that? Given the poor quality of some the umpiring crews in baseball, any technology that can improve the quality of the calls while not overly impeding the flow of the game (I will give you that point) is good with me. I believe it can be done if MLB put it's mind to it.