You’ll see many unique deliveries by pitchers as they add their own personal styles, but most deliveries consist of taking one step as the pitch is thrown or not taking a step forward as the pitch is released. Let’s consider the advantages and disadvantages of each type of delivery.
The one-step pitching delivery is widely used because it’s the way that we all learn to throw, whether overhand or underhand. The disadvantage of the one-step delivery is that pitchers are reducing the distance between themselves and the batter, which further reduces the time that they have to catch a ball hit to them. Some pitchers are able to take a slight step forward and then immediately take several steps back to get set up defensively, but not all are able to make this adjustment. The steps in executing this delivery are shown and explained in the series of photos in figure 5.2 and in Defense→Pitching→Delivery Methods on the DVD.