I think there are bad calls in most games, but when you qualify it by saying a call that is reviewable, is shown in replays to be indisputably wrong and likely to be overturned in a replay, and having any amount of impact on the outcome of the game, that reduces the number of incidents beyond the point of practicality. As far as the integrity of the game, I think the added delays of a game already widely considered to be too slow would counter any positive publicity they could possibly receive from instituting instant replay. Again, I don't believe the delay would be as significant as people think. Certainly no more than the fruitless arguments that go on over bad calls now. And I don't think impact on the outcome of the game should be a factor in considering this. No one can know at the moment of the bad call how significant that will be to the outcome of the game. In retrospect, it may not be, but that happens in football too, and I don't think anyone would want the NFL to drop replay at this point. The comparisons with football simply don't work in baseball. The clock, time of possession, and turnovers all play a huge role in every game, and all can be impacted by a single blown call. When the outcome of a baseball game is rarely affected, and when a single game in the course of a 162-game season is so small, it very well should be a factor. A single baseball game makes up as much of a percentage of a season's playing time as 6 minutes does in football. If a team plays a better football game for 42 minutes, but the other team storms back the final 18 minutes and then wins the game on a bad call, the team that was better for the first 42 minutes doesn't still come away with 70% of a win. They get one loss, which carries the weight of ten losses in baseball. Replay makes way more of a difference in one season of football than it could ever make in ten seasons of baseball, and they are only afforded the baseball equivalent of 1 challenge per five games. The comparison is completely invalid.