After Hurricane Katrina struck the U.S. Gulf Coast in 2005, Washington, D.C., teacher Liz McCartney and lawyer Zack Rosenberg wanted to help. Their efforts took them to New Orleans where they founded the nonprofit St. Bernard’s Project to rebuild homes and help victims recover from natural disasters. As the nonprofit and the scope of its work grew, they sought help from lean experts at the Toyota Production System Support Center to improve their operation, which they chronicled in their book, “Getting Home.” McCartney discusses the project and its ongoing challenges in an interview with Brion Hurley of IISE’s Sustainable Development Division.