Class members, generally used in the sales industry, refer to employees engaged in sales, such as marketers and salesmen. This word was first used in Japan, Korea and other places, and was later introduced to China.

A senior teacher originally refers to a salesperson with rich marketing experience. Reserve cadres, now commonly used to refer to the sales industry, can be understood as sales employees with certain sales expertise. Although they may not have rich sales qualifications, from another perspective, they are considered' senior' in terms of knowledge.

On the significance of temporary reserve cadres;

Reserve cadres are reserve talents of enterprise management, and through a series of training and exercise, they eventually become middle-level or even high-level managers. If enterprises want to develop in the fierce market competition, they must have management backbones and excellent talents. In addition to outsourcing, enterprises are paying more and more attention to cultivating their own management talents and creating leading figures who can lead enterprises to ride the wind and waves. To this end, enterprises will generally go through strict and prudent recruitment procedures, select the most potential talents, conduct strict training, and enrich all the abilities and skills required for reserve cadres to become professional managers.

Personal opinion: I also agree to start from the grassroots, but we should clearly understand the essential significance of reserve cadres and senior teachers, and applicants should be fully prepared before applying for such positions.