Human Resources (HR) is composed of many integrated activities within an organization. External factors also affect human resource activities and how they are designed, managed and modified. Of the seven tasks an HR manager does, which do you think is the most challenging? Why? Solution There are seven tasks an HR manager does, These are:- i) Staffing ii) Performance Appraisals iii) Compensation and Benefits iv) Training & Development v) Employee & Labour Relations vi) safety & Health vii) Human Resource Research Out of the above seven challanging tasks an HR Manager does, Staffing is the most challanging task because having the right people at the right time at right place is the primary challange for HR manager. The HR manager is responsible for Selecting employees based on the ability to do work who value the teamwork & also whose personal values matches with the organizational values & day by day staffing as the function of human resource management is becoming more complex..