The text discusses the importance of measuring software development team performance using four key metrics: lead time, deployment frequency, change fail rate, and Mean-Time-To-Restore (MTTR). These metrics were identified through research by the authors of the annual State of DevOps Report as having a strong correlation with business outcomes such as profitability, productivity, market share, and customer satisfaction. The text also describes how one company, Contentful, implemented these metrics to improve their software delivery pipeline and productivity. The company created a team focused on improving the pipeline, which used tools like Grafana to surface data and provide insights into areas for improvement. While the implementation was challenging, it led to improved visibility and adoption of the new metrics among teams. However, the text also notes that correlation with business outcomes is not guaranteed and that other factors such as technical, process, and cultural capabilities play a crucial role in success.