The Space Shuttle represented a dramatic departure from the launch and space vehicles of the preceding Apollo era, with a new focus on routine access to low-Earth orbit, utilizing a high degree of reusability—and higher flight rates—to attempt to meet its many challenging goals. There is much to be learned from this pioneering effort and, fortunately, many of the master program/project manager practitioners who were involved in the shuttle program are still available to share these stories and lessons learned with current and future practitioners within NASA. Thomas (Tom) L. Moser began his aerospace career at RCA Missile and Surface Radar Division as a mechanical design engineer. Joining NASA at the Manned Spacecraft Center (Johnson Space Center) in 1963, he held various positions including Apollo subsystem manager for the Command Module and Launch Escape System Structure; orbiter subsystem manager for the structure and thermal protection systems (tiles); orbiter deputy project manager; and director of engineering.