"If you wanted replay to be a fiasco, this is the system you would implement. It's complicated, it's slow, it shifts responsibility for getting the calls right from the umpires to managers, it may disenfranchise fans at the park. It makes an assumption -- that the number of erroneous calls is evenly distributed -- that is demonstrably false. It grandfathers in, for no earthly reason, the current process of reviewing home-run calls, with the idiocy of all four umps leaving the field.
"It's not enough to say, 'But it's cool that we're getting more replay.' You want your kid to go to college, but if they come home one day and say they're going to clown college or beauty school or UCLA, you don't praise them for getting it half right."