JAM Model

The JAM model is a prioritisation framework for product and company strategy: force-ranking J (Jobs / Growth), A (Action / Engagement), and M (Monetisation) to resolve the most common source of leadership misalignment in startups. Associated with Gibson Biddle, VP Product at Netflix.

Primary source: Gibson Biddle on Product Strategy.

Note: Gibson uses “JAM” colloquially; the three dimensions are properly Growth, Engagement, and Monetisation (the J is a loose fit for the first). Some versions use “G-E-M.” The mnemonic matters less than the forced trade-off.

The three dimensions

Why force-rank?

All three matter. The model’s claim is that unresolved implicit priority is the #1 source of strategic misalignment in product organisations.

When no explicit order exists:

• Engineers build features for users who love the product (engagement).
• Sales demands features for conversion (monetisation).
• Leadership demands viral loops and SEO (growth).
• PMs triage based on whoever is loudest that week.

Making the priority order explicit gives every product decision a default resolution: “When engagement and growth conflict, which wins? We’ve said growth.”

How to use it

1. Have each key stakeholder (CEO, CPO, CFO/Head of Revenue) privately rank the three.
2. Convene. Compare. If aligned: commit and document.
3. If not aligned: resolve before the next planning cycle. This is a strategic conversation, not a product conversation.
4. Revisit when external context shifts materially (major growth slowdown, funding event, market contraction).

Gibson’s SWAG approach: don’t wait for perfect data. Take a provisional position, share it one-to-one with each stakeholder before any group meeting, and refine. Start the group meeting with a proposal already pressure-tested.

Netflix example

Circa 2005, Netflix priority order: Growth → Engagement → Monetisation.

Rationale: subscriber growth was the primary driver of content leverage and unit economics. A better product (lower churn) contributed to growth. Monetisation was considered largely solved by the subscription model.

Chegg case study (Gibson, 2010)

Gibson joined Chegg as CPO. On one end of the hall: CEO Dan — “Grow, baby. Grow.” On the other: CFO Greg — “Slow down. We don’t know if we have a business model that works.”

Gibson forced a joint meeting and asked them to rank G-E-M.

• Dan: Growth > Engagement > Monetisation.
• Greg: Monetisation > Engagement > Growth.

They agreed on Growth first after initial negotiation. Months later, the misalignment resurfaced. Greg eventually left. “These are the kinds of fundamental misalignments that can wreck startups.”

Lesson: the JAM conversation surfaces real strategic disagreements that otherwise manifest as endless operational friction.

The hardest part: defining the engagement metric

Growth and monetisation have obvious metrics (subscriber growth %, revenue). Engagement does not.

Gibson’s view: the engagement metric is the most important and most contentious conversation. At Netflix, it was monthly retention (inverse of churn). Getting to that definition required genuine internal alignment on what “product quality” meant quantitatively.

Without an agreed engagement metric, “engagement vs. growth” debates are unresolvable because both sides are using different scorecards.

Relationship to adjacent frameworks