Final answer:
Ulrich's HR roles at Amazon are applied in the areas of strategic partnership, administrative expertise, employee champion, and change agency, impacting the organization positively.
Step-by-step explanation:
Ulrich's HR roles are focused on four key areas: strategic partner, administrative expert, employee champion, and change agent. Examining the application of these roles at Amazon, we can see that as a strategic partner, Amazon's HR department works closely with other departments to align HR initiatives with business strategies. As an administrative expert, Amazon's HR team manages various HR functions and processes efficiently. They also act as employee champions by advocating for the needs and well-being of Amazon's employees. Lastly, as change agents, Amazon's HR department plays a crucial role in driving organizational change and supporting innovation initiatives.