This presentation explores the nature of motivation and the place of metrics and measurement in software development, and how lean software development principles and practices shed light on motivation and metrics and how they can be used to support deep organizational improvement. We will examine the nature of motivation in terms of the four intrinsic rewards that drive positive engagement, and also how certain approaches to measuring and managing performance lead to organizational dysfunction. We will also show how the application of lean principles such as building quality into the product, respect for people and optimizing the whole enable more effective approaches to motivation and metrics in software development.