The document discusses a case study of NetBank, which conducted a survey of closed customer accounts to understand reasons for attrition. The survey found issues with customer service response times. NetBank then internalized its email customer support to improve response times from over 50 hours to under 10 hours. It also implemented additional initiatives like after-call surveys. As a result, NetBank was able to measure improved customer satisfaction metrics and develop new metrics like contact center ROI to track the impact on retention and revenue.