Pinterest · Metrics · Senior · 45 to 60 minutes

Pinterest growth plan with noisy metrics

Pinterest is a visual discovery platform where people find, save, and organize ideas they want to try later. Answer this product management case and get it graded line by line against a weighted rubric.

Metric design
Experimentation
Prioritization
Growth strategy
Systems thinking

The situation

The head of growth at Pinterest asks you, a senior PM, for a plan before annual planning. User growth is still healthy, but leadership is worried that too much of it may be shallow if people do not come back. At the same time, more teams are running experiments across onboarding, recommendations, emails, and search landing pages, which makes it harder to tell which changes actually improve retention. Another group wants to push harder on SEO, but there is disagreement about whether search gains come from marketing style tactics or from how Pinterest's product and content are organized. You need to recommend where to focus first across retention work, experimentation discipline, and SEO related product changes. The hard part is that these bets interact. Search traffic can make top line numbers look good even if the product is not getting stickier, and too many overlapping tests can hide the true drivers of improvement. Leadership wants a clear metrics plan and a sequenced set of bets.

What to produce

Write a 1 to 2 page metrics and sequencing memo.

Your answer must

Define the north star metric and 4 to 6 supporting metrics you would use to separate acquisition quality, activation, retention, and SEO performance.
State your diagnosis of the most likely causes of the problem, and name the analyses or cohorts you would review first to test that diagnosis.
Recommend a sequenced plan for the next 2 quarters, including what you would do first, what you would defer, and why.
Explain how you would improve experiment design or operating rules so Pinterest can isolate variables as more teams run tests at scale.
Describe the main risks and second order effects of your plan, including how SEO related changes could help or hurt core product value and decision quality.

Constraints

Work only from the case facts and general knowledge of Pinterest, do not assume hidden data or the full article.
You cannot rely on paid acquisition, a major reorganization, or a full product rebuild to solve the problem.
Engineering and analytics capacity are limited, so you must prioritize only a small number of near term bets.
Any SEO recommendation must preserve user value and trust, not just increase traffic.

Format

A short memo with bullets is fine. Use sections for goals, metrics, diagnosis, recommendation, and risks.

How Pinterest actually played it

Interview with Pinterest's former growth lead about retention improvements, experimentation at scale and what really drives SEO results. Useful for growth PMs wanting concrete practices.

Isolate variables as the company scales
SEO strategy follows product structure

Built from Casey Winters On Pinterest's Retention Wins and Why 90% of SEO Advice Is Wrong by Reforge.