Cheap Professors (high pay, a lot of work and high quality products) and Expensive Professors (high pay, less work and low quality product), How to evaluate?

Expensive Professors; Very little teaching load, always reject teaching duties, not committed in teaching, no his/her own courses, or they have a course but no student, just managing a group of students only, not involve in any committee, no post graduates/just co-supervisors, no research grants, no research activities, no contribution to department, faculty or university, inaugural lecture just another compilation of  lecture notes presentation, always not in the department with all sort of reasons (sick, busy, out station, etc.), escape from all official duties, passing jobs to juniors,  low number or no high impact factor journal, never present key notes lecture, always ask students to present papers on behalf in seminar or conferences,  no leadership quality, hardly seen in the university.

Cheap Professors: Teaching many courses, offer his/her own elective courses and many students taking the course, have many postgraduate students (local and international), have research grants, active in research at local and international levels, always become as invited speakers or key notes speakers, a lot of contribution in term of ideas and actions at the department, faculty and university levels, many committees in the university at department levels up to senate levels. inaugural lecture really show the real research activities in his/her career, international, regional and local networking clear and benefit the university and country, friendly, leading the faculty members, organise many activities for staff, students and extension works, leading research group and students to publish in high impact journal, many activities for the community to disseminate his/her expertise, and many more.

Unfortunately because of cheap professors are busy and forgot to apply for promotion, university management always forgot them too.  Try to compare professors in your department, look for your idol. the management too must learn to appreciate quality professors.