This question involves stereotypes and prejudices against specific groups. Linking people to regions and formulating special management measures for a certain group may lead to unfairness and disharmony within the team and may also violate the principle of treating employees equally. In fact, the differences between different individuals are more the result of multiple factors such as personal character, experience and work attitude, rather than being determined simply by region. If your goal is to improve teamwork and communication, you can consider the following points instead of focusing on "preventing" a certain group: 1. Establish clear teamwork norms: clarify the expectations and standards for team communication and collaboration, and ensure that everyone works in a fair, respectful and open environment through full-staff training, regular discussions and feedback mechanisms. 2. Focus on personalized management: pay attention to the specific performance and needs of each employee, rather than presupposing or labeling them based on their background. Providing equal development opportunities and communication platforms for all employees will help to give full play to everyone's strengths. 3. Strengthen team building: enhance mutual trust and understanding among employees through team training, team activities, cross-departmental cooperation, etc., thereby reducing the negative impact caused by personal confidence or differences of opinion. 4. Establish an open feedback culture: Encourage employees to exchange opinions in a timely and frank manner. Management can regularly collect and respond to employees' opinions on cooperation and communication, solve possible problems in a timely manner, and create an atmosphere of common development. In short, by building a corporate culture based on respect, understanding and cooperation, teamwork can be effectively promoted, rather than taking precautions against a specific group. This can not only avoid the negative impact of stereotypes, but also give every employee room for development and a sense of belonging.