Product Sense: Pick a Product You Love and Design Its 10x Growth Strategy
Company: Google
Role: Product Manager
Category: Product Design & Strategy
Difficulty: medium
Interview Round: Other
Tell me your three favorite products. Then pick one of them and walk me through how you would grow it tenfold.
### Clarifying Questions
- Can the three products come from any company, or would you like at least one of them to be a Google product?
- Does "tenfold" refer to users, engagement or revenue, or should I choose the measure and defend it?
- What time horizon should the growth plan cover?
- Can the plan take the product into new countries or new user groups, or should it grow within its current market?
### Part 1 — Three favorites and the one to scale
Name three products you consider your favorites and say briefly why each one earns the label. Then choose the one you will scale and explain the choice.
```hint Criteria before names
Decide what makes a product a favorite for you before listing any, and let the pick depend on where you see the most room to grow, not only on which one you use most.
```
#### What This Part Should Cover
- Explicit criteria for "favorite", applied consistently to all three products
- A reason for the pick that rests on growth headroom and on how well the candidate understands the product's users
- A short statement of what the chosen product is for and whom it serves today
### Part 2 — The tenfold plan
Lay out how you would make the chosen product ten times bigger.
```hint Ten times what, for whom
A product that is already widely used rarely has room to multiply its total audience. Settle which number you are multiplying, and for which group, before you suggest any feature.
```
#### What This Part Should Cover
- A defined 10x metric with its baseline, time horizon and a check that the target is plausible
- The user segment chosen and the pain points that currently hold its growth back
- A small set of solutions, prioritized by impact against effort and sequenced into phases
- How progress would be measured, including what must not get worse
### What a Strong Answer Covers
- A clear flow from the product's purpose to the goal metric, the users, their problems, the solutions and the measurement plan
- Sound judgment about whether ten times is realistic, and how the goal was reshaped if it was not
- Success metrics tied to the 10x goal, with guardrails for the product's existing users and partners
- Risks such as cannibalizing the core experience, side effects on the rest of the ecosystem, or execution cost, each with a mitigation
- Awareness of the business model, including how the growth would pay for itself
### Follow-up Questions
- If the target were fixed as ten times revenue rather than the measure you chose, what in your plan would change?
- Which piece of the plan would you build first, and what early signal would tell you whether to keep going?
- How would the growth you propose affect the people on the other side of the product, such as sellers, creators or advertisers?
Overview: A product sense question for product manager interviews: name three products you love, choose one, and present a plan to grow it tenfold. It tests whether you can set selection criteria, decide what ten times growth should mean for a mature product, focus on one user segment, prioritize solutions, and pick success metrics.