There is no DH in the National League, where the pitcher is required to participate offensively. In addition to the players, there are several other individuals who greatly impact the baseball game, including managers, coaches, and umpires. A baseball manager is the strategic leader of a team. They decide which players will start the game, the order they will bat in, and the positions they will play. Managers also give instructions to their players.
Coaches assist the manager.
There are several types of coaches on a baseball team, but only a few usually have a direct effect on the game. Umpires enforce the rules of the game. The three infield umpires have three jobs. They determine whether or not a ball remains in play or if it has gone foul. They determine whether or not a player has safely reached a base or if he was forced out by the other team.