The document discusses adopting agile practices while still operating within a traditional waterfall development model. It begins with an anecdote about a team that was given a large project with a tight deadline and limited resources that had traditionally used waterfall. The team was able to deliver the project on time and under budget by adopting agile practices like breaking work into smaller projects, establishing team values, and securing executive support. The document advocates that agile principles can be successfully applied even within organizations still reliant on waterfall models.