Project leaders play an important role in an agile project; it’s just not the role they learned at their project management class. Instead of scheduling with PERT chart and Gantt chart, they create a release plan with frequent milestones and keep the focus on meeting iteration commitments. Instead of worrying about scope creep, they worry about creeping elegance; instead of worrying about change approval processes, they worry about change-tolerant design practices. They make sure that testing and integration are part of development instead of a separate and later event. They make sure that the people involved in deployment, training, and customer support are fully involved from the start. —p116, Chapter 5, Lean software development (book)