1. Reason for replacement: state why you are replacing the current catering company, which may be due to the quality of service, hygiene and safety, and price.

2. Purpose of Replacement: State the service goals and objectives of the new catering company and how it will meet the needs and expectations of the school's students and faculty.

3. Replacement process: Describe the specific process and timeline for the replacement, including the process of negotiating with the original catering company, negotiating with the new catering company, and signing the contract.

4. Safeguards after replacement: explain how the new catering company will ensure the quality and safety of the catering service, how it will address the feedback and complaints from the school's teachers and students, and how it will maintain communication and cooperation with the school's management, teachers and students.

5. Service content and price after replacement: explain how the service content and price provided by the new catering company will match the needs of the school's teachers and students and comply with relevant laws and regulations and industry standards.

6. Publicity and promotion after replacement: explain how to publicize the service advantages and characteristics of the new catering company to school teachers and students, and how to attract more school teachers and students to consume.

7. Evaluation and adjustment after replacement: explain how to evaluate and adjust the services of the new catering company, and continuously improve the service quality and meet the needs of school teachers and students.