Are managers held accountable for developing, maintaining, and improving the performance management system?

Of course, the managers are the link between the employees and senior management in any company, so they should be chosen with great care and care because they are the reason to encourage employees or to frustrate them and thus cause the success or failure of the company

UnDoubtedly .......they are the "makers or breakers" in this subject. HR Team & respective departments need to invest time in developing managers to inculcate strong beliefs in performance management.1st time / Young managers groomed on various "people practices" in their first2 years term, creates a solid foundation. But, this seldom happens..... :-(

Yes, all managers and supervisors are responsible to implement the performance management system and HR can develop format and follow-up the eperformance of employees.