The Field Of Human Resource Management Has Evolved Over The Last Two Decades To

The field of Human Resource Management has evolved over the last two decades to become a business partnership within most organizations. What factors would you suggest led to the increase of business leaders now viewing Human Resources professionals as strategic business partners and not just administrative personnel? What experiences, positive or negative, can you share regarding your interaction with HR professionals and how does the training department factor into it?  Please support your answer with at least three reasons that justify your position.