When an interviewer asks how you plan on making a difference, they're not expecting you to come in and reinvent the wheel. They'll leave that to their executives. Besides, when building relationships with those who consider themselves stakeholders, those who've contributed and helped strengthen the systems and processes, the last thing you want to do is come in expecting to tear it all down and assume you can build something better than what they've taken pride in building together. Instead, take a close look at one of Home Depot's core values, Entrepreneurial Spirit: "Home Depot associates are encouraged to initiate creative and innovative ways to serve our customers and improve the business as well as spread best practices throughout the company." They focus on embracing their values while better serving their customers and enhancing their best practices. So when answering this question, focus on your contribution through collaboration.