"You used to be taught to let the ball go as far as possible and then drop it on the runner, whereas now it might be even more advantageous to direct the ball in front of the bag and get the guy on the leg," Cubs infielder Ben Zobrist said. "Because you're still getting him before he gets to the bag, but it's pretty conclusive on the video that you got him. It used to be like, 'Oh, no, he got his hand in there.' You couldn't tell before, but now that they've got replay, you figure out every time who is out and who is safe."