The writing methods of this reason include professional background and experience, leadership ability and innovation ability.

1. Professional background and experience: As the talent supervisor of canteen echelon, you need to have relevant professional background and experience. You can list your past work experience in the catering industry and your professional skills in managing, training and developing employees. These experiences and skills will help you successfully lead and manage the canteen team.

2. Leadership: As the talent supervisor of the canteen echelon, you need to have excellent leadership. You can emphasize your past successful experience in leading a team, and your ability to stimulate the potential of employees and promote teamwork and development. These leadership skills will help you effectively promote the development and success of the canteen team.

3. innovative ability: as the talent supervisor of the canteen echelon, you need to have innovative thinking and innovative ability. You can emphasize how you can use new technologies, new methods and new ideas to improve the efficiency and effectiveness of canteen operation. For example, you can suggest how to use data analysis to optimize menus and marketing strategies, or how to introduce new cooking techniques and equipment to improve food quality. These innovative abilities will help you stand out in the highly competitive catering industry.