baseball manager

baseball, baseball game - a ball game played with a bat and ball between two teams of nine players; teams take turns at bat trying to score runs; "he played baseball in high school"; "there was a baseball game on every empty lot"; "there was a desire for National League ball in the area"; "play ball!"

batting coach - (baseball) someone who teaches batters how to bat better

coach, manager, handler - (sports) someone in charge of training an athlete or a team

pitching coach - an assistant baseball coach in charge of pitchers