Ana's team faced a significant disruption due to a bug that slipped through a rushed code review process, highlighting the need for efficient code review strategies to enhance product quality and team productivity. The text examines various code review methodologies, including formal reviews, lightweight reviews such as pair programming and over-the-shoulder reviews, asynchronous reviews, and tool-assisted reviews, each with its own benefits and drawbacks in terms of time, scalability, and integration with workflows. The use of pull requests, particularly when adhering to best practices, is highlighted as a flexible and efficient approach, especially for Agile teams, but challenges arise with large pull request sizes that may delay reviews. The concept of stacked pull requests is introduced as a solution, breaking down large changes into manageable, interlinked segments that facilitate faster and more thorough reviews while maintaining development momentum. Tools like Graphite are mentioned as enhancing this process by automating workflows and improving review efficiency, providing a practical approach for teams like Ana's to reduce complexity and improve code quality.