Lore

Misconception: PM Owns the 'What', Engineering Just Executes the 'How'

One of the product-management misconceptions Chris Jones (SVPG) argues against: that the PM's job is to decide what to build and hand it to engineering to figure out how — with engineering treated as a downstream execution function rather than a co-owner of the solution.

Illustrative analogy (Marty Kagan, via Chris Jones): "If you're a product manager... would you give [engineers] pseudo code and ask them to work from that pseudo code? And of course, that's ridiculous" — a fully-specified "what" handed to engineering is really just pseudo-code for the "how," and treating engineers as mere implementers of it wastes their judgment.

Supporting evidence for the collaborative alternative: "When I look back at the coolest product innovations, really the best ideas, nearly all of them came from engineers on the team" — the best solutions came from engineers acting as full problem-solving partners, not spec-takers.

Organizationally, this misconception shows up as a request for rigid role-clarity matrices — see RACI (Role-Clarity Matrix) as Product-Team Anti-Pattern and DACI (Decision-Role Matrix) as Product-Team Anti-Pattern — which Chris recommends replacing with genuine shared ownership. See also Product Trio, Extended Trio (Commercial Stakeholders in Product Trios), and Win-Together Culture (Breaking Down Silos) for the collaborative structures the best teams use instead.

Engineers Care About the What, and Outsourcing Is a Non-Starter

In good Product Model (vs. Roadmap Model) companies engineers care about what is built, not just how it's built — reinforcing that the "PM owns what, engineering owns how" split is a misconception rather than a design goal.

Cagan calls outsourced engineering a "non-starter" for the product model: a smaller group of true employees, invested in the product and the customer, will consistently outperform a larger outsourced group executing someone else's specs.

Cascading Handoff Pattern

A concrete shape of the handoff antipattern: a CEO tells a director, who tells the product manager, who tells the designer, who tells the engineer what to build — a waterfall cascade rather than a trio walking together (Product Trio). Idiodi notes that larger companies, with more hierarchy, layers, committees, governance, and top-down approvals, structurally reinforce this cascade; the fix isn't just individual habit but a company structure that lets product, design, and engineering resolve value, usability, and feasibility risk simultaneously instead of in sequence.