Debbyn Milligan began her career at The Home Depot as a cashier 23 years ago in Oceanside, Calif. The front end of the store continues to be a major focus of her attention, but in some very different ways.

Today, Milligan is the VP operations for the world’s largest home improvement retailer. She describes her mission as taking responsibility for the nearly 2,000 U.S. stores from the front end to receiving to the back office. It’s a complex operation, but her team is charged to make it simple, or at least, as simple as possible.