How can HR help make an organization more competitive?

How can HR help make an organization more competitive?

1. How can HR help make an organization more competitive?

2. What competencies do HR professionals need?

3. What should the role of HR be in strategy formulation? IN TEXT references required. The book is Human Resource Management (Gaining a Competitive Advantage 9e) by Noe, Hollenbeck, Gerhart and Wright. Please use APA style. 250 minimum per question.