The document discusses expectations and challenges around adopting agile practices. It summarizes that while some teams see 5-10x improvements, these outcomes are not typical. Common expectations that agile will be easy and provide guaranteed high returns can lead to perceptions of agile "failing" if not met. The document advocates that success is becoming incrementally better over time rather than an endpoint state. It also discusses how expectations, desire, ability, promotion and transfer are needed for successful adoption and preventing approaches from being done half-heartedly.