Katie noticed operational and safety issues at Norfolk Southern's Atlanta terminal and was inspired by the book "Our Iceberg is Melting" to create change. She formed a guiding coalition called the "Iceberg Group" to implement Kotter's 8 steps of change. They created a vision for improved safety, communicated it at daily briefings, empowered employees to improve safety personally, achieved an initial goal of 6 months injury-free, and aim to fully embed the changes in the company's culture.