What action can the pitcher take after placing his pivot foot clearly behind the plate?

When the pitcher places his pivot foot clearly behind the plate, he has the option to either throw or feint to a base. This is an important strategic element of pitching, as it allows the pitcher to attempt to catch baserunners off guard or to induce a reaction from them. The ability to throw or feint showcases the pitcher's ability to manage the game and put pressure on the opposing team.

The rules allow for this action because once the pivot foot is established behind the pitcher's plate, the pitcher maintains the freedom to engage in movements that could lead to a play, as long as they comply with the underlying regulations concerning legal pitches and actions on the mound. It’s a part of the tactical gameplay where the pitcher can keep running players in check and control the pace of the game.

This option emphasizes the flexibility that pitchers have once they have established their position, which is essential for effective pitching strategy.