As agile development becomes more popular and established, it runs the risk of maturing into a rigid, codified system that, of course, would be just the opposite of the agility we cherish. In my experience, management gravitates toward established, predictable, repeatable processes for good reason: they make management's job easier. To an extent, agilists encourage this increasing codification of agile development by writing an endless stream of books describing just how agile "should" be done.