Beijing Guoan's new season personnel adjustments will follow two principles. Principle one: Stick to the old rules and strengthen the lineup with the goal of winning the championship. Principle two: The characteristics of new recruits should match the coaching style of head coach Setien, which is to play ground-based football. Following these principles, Beijing Guoan's squad adjustments have begun. The author will introduce them in detail in the order of departing domestic players, renewing domestic players, introducing domestic players, and foreign aid changes. The departing domestic players are currently defenders Zhang Chengdong and Yu Dabao, and midfielder Li Ke. Zhang Chengdong, an 89-year-old player, is now 35 years old. His contract with Beijing Guoan has expired, and both sides will not continue their cooperation. In the 24th season of the Chinese Super League, Zhang Chengdong played 12 games for Beijing Guoan, with no goals or assists. The latest news is that Zhang Chengdong is reported to be participating in winter training with Qingdao West Coast. Yu Dabao, an 88-year-old player, is now 36 years old, and his contract with Guoan has also expired. According to Li Ming, the manager of Guoan, they should keep Yu Dabao and help him transition to a coaching role. In the 24th season of the Chinese Super League, Yu Dabao made 16 appearances for Beijing Guoan, scoring 2 goals and providing 1 assist. As for Li Ke, who was naturalized, he bid an emotional farewell to the fans and teammates at home in the final game of the 24th season of the Chinese Super League.…