The article emphasizes how coding agents are transforming the roles within Engineering, Product, and Design (EPD) teams. With tools that simplify coding, the traditional reliance on Product Requirement Documents (PRDs) has diminished. Instead of the old model where a PRD dictated the flow from concept to mockups to code, now anyone can quickly prototype software. While this democratizes coding, it also shifts the bottleneck from implementation to review. EPD teams must ensure that the generated code is well-architected, addresses user pain points, and offers intuitive design. As a result, the review process has become more burdensome, requiring a stronger focus on quality control. The article highlights the rising value of generalists who can navigate across product, design, and engineering. They streamline communication and reduce delays that often stem from needing to coordinate between specialized roles. With coding agents making it easier to produce prototypes, those who adopt these tools can validate ideas faster and iterate more effectively. The piece warns that poor product thinking can lead to wasted resources, as bad prototypes demand more review and can clutter production pipelines. System thinking is now essential. Professionals need to grasp the larger context of their work—engineers should understand architecture and APIs, product managers must identify genuine user needs, and designers need to know what makes interfaces effective. Those lacking product sense risk generating code that adds to the review backlog, while those with it can provide clearer guidance to coding agents, streamlining the development process. As EPD dynamics shift, the ability to think systemically and understand product intent becomes increasingly critical for success.