The most effective way to address and correct defects while maintaining predictability and capacity is by working with the team to establish clear coding and quality standards, as well as comprehensive testing policies. By setting these explicit rules, the team will have a shared understanding of the quality expectations and testing requirements, which will help prevent defects from escaping into production. This approach focuses on building quality into the process, rather than reacting to defects after they occur, and supports the long-term goal of improving software quality and predictability without overburdening the team.