The defense attempts to get the batter out. The pitcher's main role in this is to throw the ball in such a hang-up that he or she either strikes out or cannot hit it cleanly so that the defense can get him or her out.
The lineup or batting aligning is a list of the nine baseball players for a team in the array they will bat during the game. During the game the only bag to change the lineup is via substitution, as batting out of turn is not allowed. Once the ninth person in the lineup finishes batting, the first person bats again; this is the finest of the order. Lineups are studious to facilitate manufacturing runs. Depending on batters' skills, they might be placed in Batting Cages changed parts of the lineup. Of course, when it comes down to it, all batters are attempting to create runs for the team.