Disciplined agile delivery (DAD) is a way to help teams make smarter decisions about how to get things done. It helps teams make decisions about doing the right things for the right reasons. DAD is about working together to plan out how to get the job done in the most efficient way and then using the plan to make sure everything gets done. It also helps teams work together to figure out how to solve problems and to stay on track while they are working on their project.