Can a pitcher change his delivery style during a game?

A pitcher is permitted to change his delivery style during a game, provided that he adheres to the specific rules governing each type of pitch. This flexibility allows pitchers to adapt their strategies and respond to the opposing team's strengths and weaknesses without restriction, as long as they comply with the guidelines set forth for different delivery methods. For instance, whether it’s a fastball, curveball, or any specialized delivery, the pitcher must ensure that he respects the fundamental principles that govern those types of pitches.

This openness in the rules reinforces the dynamic nature of baseball, where a pitcher's skill set and adaptability can significantly impact the outcome of the game. It's important to note that while delivery styles can change, actions such as illegal pitches or violations of the pitching regulations still apply and need to be observed to avoid penalties.