The document discusses how the Office of Personnel Management (OPM) successfully used Agile methods to modernize its Federal retirement system. Previously, traditional approaches had failed to deliver an online retirement system. Using Agile, OPM shifted to focus on collaborating closely with subject matter experts to understand their needs. This allowed iterative delivery of a working data reporting solution. Challenges in applying Agile in the Federal government included issues with governance and earned value management metrics. However, OPM has continued expanding the use of Agile for additional projects.