The document discusses how the role of product managers changes and stays the same with Agile development methods. It summarizes the traditional responsibilities of product managers in driving strategy, requirements, and market acceptance of products. It then provides an overview of Agile principles and processes. While Agile focuses development teams on frequent delivery, the document argues product managers still bridge engineering, markets, and strategy through responsibilities outside of development like pricing and packaging. Effective product managers in Agile environments are technically strong but also market-focused.