THAAD was a kinetic-energy weapon designed to protect the United States against enemy missile attack. But after $3.2 billion had been spent, the program was deemed a failure as all five of the initial tests had missed the targets. This case series is about how a strategic-sourcing project ran into trouble and what options could be pursued to rescue the project, given the multiple stakeholders involved. The B case presents what actually happened. The A case (UVA-OM-1185) provides the background.