The text discusses the shifting dynamics in DevOps, emphasizing the need for development teams to take on more responsibility in managing on-call duties traditionally handled by DevOps. As continuous integration and continuous deployment (CI/CD) increase the pace and scale of code deployments, developers gain more autonomy, necessitating their involvement in troubleshooting and incident response. This transition requires a cultural and technical shift, where developers are equipped with the necessary tools and permissions to address application issues effectively. The guide outlines steps for DevOps leaders to facilitate this transition, such as obtaining developer buy-in, assessing infrastructure health, and providing appropriate visibility and access tools. The ultimate goal is to implement a "Shift Left" approach, enabling developers to resolve problems earlier in the software development lifecycle, thereby enhancing efficiency and reducing downtime, benefiting both development and DevOps teams.