My favorite feature of Scrum on paper, as designed, is the idea that any change to the requirements for a sprint means the sprint ends right there, and a new sp

My favorite feature of Scrum on paper, as designed, is the idea that any change to the requirements for a sprint means the sprint ends right there, and a new sprint is started. It's great for "Just leave us the hell alone for two weeks, and we'll deliver what we promised we'll deliver over these two weeks". Of course, it never works that way. The sprint becomes an arbitrary schedule, and the work of the sprint becomes mutable. Ugh. Sudden, OMG THIS IS IMPORTANT WE MUST DO THIS RIGHT NOW changes in direction are the bane of productivity.