Let's say it's the bottom of the 6th, the game is tied 1-1. The opposing pitcher has been mowing down your offense all day. In the top of the 7th, 6-7-8 is due up in the order. 6 and 7 make outs. You walk the 8th guy intentionally to force the opposing manager to remove his pitcher. Then say your team scores some runs off the bullpen and wins the game. It was because you were able to force the other manager's hand and force him to act. There is nothing like this in the AL. First, I don't think there's much chance most managers pull the pitcher in that scenario. Second, there's no guarantee the pitcher pulled wouldn't have given up runs. Third, you might have won that game later anyways. Even if the perfect, imaginary scenario for the anti-DH argument, things fall pretty flat.