I highly recommend the book "Priciples of Software Engineering Magement by Tom Gilb. It lays out a superset of the techniques and principles of what eventually

I highly recommend the book "Priciples of Software Engineering Magement by Tom Gilb. It lays out a superset of the techniques and principles of what eventually came to be called "Agile," in the wee early years of the eighties, and provides the rational for the principles, grounded in experience, and featuring data. Despite having been through Scrummaster training, I still believe in the power of creating a "destination" and iterating analysis-design-build util the destination is reached. Using short iterations allows for course corrections, and destination shifts. The abilty to correct sooner rater than later is the key aspect I appreciate in "agile." I've also found that while interations are good for short term planning and for scheduling sprint retrospectives (to borrow from scrum), I find that a kanban/funnel approach works better than strict iteration boundaries.