Disclosed are a method and system for managing a team by automatically recommending a position and trainer for a player in a sports game. The method may include processing the progress of a sports game instance for a user team in which at least one player character assigned to a user participates in a sports game, generating a game record including record values according to the progress of a game for each position and for each record item in the sports game with respect to the sports game instance performed on the user team, extracting at least one of the record items of the sports game as a vulnerable element of the user team based on the game record, determining a vulnerable position based on the at least one record item extracted as the vulnerable element of the user team, and providing information on the vulnerable position.