Boundaries Between Product & Engineering

What It Covers

Petra Villa and Theresa Schwartz examine where product manager responsibility ends and engineering ownership begins, focusing on bugs, tech debt, and architecture decisions that product managers commonly absorb but should not own.

Key Questions Answered

• •Role Boundary Framework: Engineers own the "how" — architecture, component sequencing, tech debt, and bug resolution. Product managers own the "what" alongside the product trio. When PMs absorb engineering decisions, code quality degrades and PMs burn out from defending work they lack expertise to explain.
• •Bug Reporting Ownership: PMs acting as middlemen relaying bug status between engineers and stakeholders is a structural failure. The fix is two-pronged: facilitate a direct channel (Slack, dashboard, or bug tracker) between engineers and stakeholders, then separately escalate systemic code quality concerns to engineering leadership.
• •IT Mindset vs. Product Mindset: Organizations without engineering leadership — only order-taking engineers — cannot build modern products. Functional product teams require engineering leaders who actively manage automated testing, CI/CD pipelines, code maintainability, and tech debt without waiting for PM direction or business tickets.
• •Skills Gap Diagnosis: When engineers cannot self-organize on zero-to-one builds or PMs are held accountable for bug status, the root cause is typically an IT-era engineering culture, not a product problem. The structural fix is hiring or developing engineering leadership, not expanding PM scope.