The article highlights the importance of speed as a key factor for success in competitive markets, emphasizing that internal tools play a crucial role in achieving this speed by improving efficiency and enabling growth. It describes how five high-growth startups—Avo, LeadGenius, DoorDash, Neo4j, and Descript—leveraged internal tools, particularly Retool, to streamline operations, reduce technical debt, and empower non-technical teams to manage workflows independently. These startups experienced significant improvements, such as saving engineering hours, cutting costs, and enhancing team productivity, which allowed them to focus more on customer-facing features and adapt to market demands swiftly. The article underscores that building a better "engine," rather than simply accelerating, is essential for overcoming operational challenges and achieving rapid growth.