Is it the employee or the managers responsibility to make a time for monthly supervision?

Is it the role of the manager to remind employees to submit monthly reports, or should staff be responsible to ensure they are done?

Should the manager send out a reminder for when time sheets are due?

Is it the responsibility of the manager to approach staff to make a time for a performance appraisal, or should staff be responsible to approach the manager to make a time?

Any thoughts would be welcome

Thanks