Too often in agile software development we tend to use methodologies and all their components simply because the rule book says so. Why not select the tool based on the context of the goal your trying to complete.
Anything that you use that does not lead towards a direct value add to the final product delivered is simply an overhead and waste.
This presentation covers discovering what is the minimum amount of practices that are required to achieve the goal of delivering a product we desire – safely, quickly and successfully. Thus allowing us to start getting feedback and improving it.