How do you think of teachers? As employees? Subordinates? Shop-floor workers? Good teachers keep students happy and happy students recommend your school to their friends. It's a virtuous cycle. If you want to keep the good staff that enhance your school's reputation, then start thinking of teachers as stakeholders in your school.
From a teacher's point of view, a successful school means more students, happier students-and more students generate income for better resources and probably better salaries, so of course teachers are stakeholders in the enterprise. And you can start treating them as such with the recruitment process itself. When you're hiring, do you have teachers on the interviewing panel and do you involve them in the hiring process from start to finish? If not, why not?
When you employ a new teacher that person has got to fit into the team. The new teacher will need help and support from the existing staff in order to settle in and learn the ropes. Your teachers have a stake in ensuring that the new member of staff is a round peg in a round hole. Let the teachers help you draw up the profile of the new staff member you are looking for. Give the teachers a chance to meet the candidates and then give you their feedback. Have a teacher or two at the interview. The final selection will be a shared responsibility and you will all have done your best to make the new appointment a success.