Identify your bullseye customer in one day | Michael Margolis (UX Research Partner at Google Ventures)
Michael Margolis, a UX researcher at Google Ventures, shares his "Bullseye Customer Sprint" method to help founders and product teams quickly identify their ideal customer profile in a single day, avoiding wasted time building unwanted products.
Deep Dive Analysis
15 Topic Outline
Michael Margolis's Background and Approach to UX Research
Defining a Bullseye Customer vs. Ideal Customer Profile (ICP)
Overview of the Bullseye Customer Sprint Methodology
When to Utilize the Bullseye Customer Sprint
Step 1: Aligning on Goals and Key Research Questions
Step 2: Defining Your Specific Bullseye Customer
Importance of a Comically Narrow Target Audience
Example: Defining a Bullseye Customer for Specialty Medication Delivery
Key Attributes for Narrowing Customer Definition: Inclusion, Exclusion, Triggers
Step 3: Recruiting and Compensating Research Participants
Step 4: Creating Simple and Effective Prototypes
Step 5: Drafting a Comprehensive Interview Guide
Step 6: The Watch Party Method for Team Alignment and Learning
Common Pitfalls and Blind Spots in Customer Research
Applying Bullseye Customer Methods Beyond Tech Startups (e.g., Biotech)
4 Key Concepts
Bullseye Customer
A bullseye customer is the very specific subset of a target market most likely to initially adopt a product or service. It's often more specific than a typical Ideal Customer Profile (ICP) and helps teams prioritize building, understand user needs, and align on initial focus.
Data Saturation
In qualitative research, data saturation refers to the point where conducting additional interviews or collecting more data no longer yields new insights or patterns. For bullseye customer sprints, this is typically reached after about five qualitative interviews, as participants start repeating similar feedback.
Humble Inquiry
Coined by Ed Schein, humble inquiry is the gentle art of asking instead of telling. It's a mindset for conducting customer interviews that involves genuine curiosity, vulnerability, and giving higher status to the person being interviewed, which is crucial for learning rather than selling.
Curse of Knowledge
The curse of knowledge is a cognitive bias where expert teams find it difficult to imagine that others don't know what they know. This often leads to common blind spots in customer research, such as overestimating how much customers know, how big a problem they perceive, or their readiness to buy.
10 Questions Answered
A bullseye customer is a very specific subset of your target market most likely to initially adopt your product, often more narrow and focused than a typical ICP, used to streamline product development and prioritize feedback.
Focusing on a bullseye customer helps startups prioritize what to build, deeply understand specific user needs, filter feedback, and align the entire team on initial product direction, accelerating momentum.
The basic formula is 'five and three in one': five bullseye customers, three very simple prototypes, with interviews conducted in one day while the whole team watches and debriefs.
The sprint is best used before investing heavily in building a product, when expanding into a new customer group or market, or when sales are not meeting expectations and troubleshooting is needed.
A 'comically narrow' target audience reduces variables in research, allowing teams to clearly test hypotheses and build confidence in the product-problem match. If even this narrow group isn't excited, it's a strong signal the product might not be needed.
Typically, five qualitative interviews are sufficient to reach 'data saturation,' where common patterns become obvious and additional interviews yield diminishing returns.
Key components include inclusion criteria (who you want), exclusion criteria (who to avoid), and trigger events (specific situations making someone ready for the solution).
The recommended mindset is 'humble inquiry' – being genuinely curious, vulnerable, and focused on understanding the customer's perspective and past experiences, rather than selling or pitching.
Watching interviews as a team fosters empathy, builds consensus, and aligns everyone on customer insights, eliminating the need for formal reports and creating strong momentum for next steps.
A common blind spot, known as the 'curse of knowledge,' is overestimating how much customers know about the problem, how big they perceive it to be, or their readiness to adopt a solution.
30 Actionable Insights
1. Define Bullseye Customer First
Focus on a very specific subset of your target market who is most likely to initially adopt your product or service, as this helps prioritize building, feedback, and team alignment.
2. Use 5-3-1 Sprint Formula
Conduct a one-day sprint involving interviews with five bullseye customers, testing three simple prototypes, with the whole team watching and debriefing to quickly gather insights.
3. Make Research a Team Sport
Involve the entire core product team in observing customer interviews and debriefing together to build consensus, alignment, and momentum without needing formal reports.
4. Conduct Deep Qualitative Interviews
Prioritize deep qualitative interviews to understand customers’ stories, motivations, and past experiences, as this provides the biggest “bang for your buck” in learning.
5. Compare Multiple Prototypes
Create three distinct, simple prototypes to present to customers, allowing them to compare and contrast different value propositions and helping your team avoid overcommitment to a single idea.
6. Aim for Narrow Customer
Define your bullseye customer with extreme specificity (e.g., 7+ attributes like inclusion, exclusion, and triggers) to reduce variables and ensure you’re testing with the most receptive audience.
7. Approach Interactions as Learning
Adopt a “humble inquiry” mindset during customer interactions, genuinely asking and listening to understand their perspective rather than selling or telling.
8. Conduct Define Key Questions Meeting
Start the sprint with a 45-minute team meeting to identify key questions, hypotheses, assumptions, and nagging debates about your product and customers, informing the rest of the process.
9. Match Customer to Questions
Tailor your bullseye customer selection (e.g., new vs. existing users) based on the specific questions you aim to answer, such as onboarding flow or new feature adoption.
10. Create Screener Questionnaire
Translate your bullseye customer criteria into a screener questionnaire, written to avoid telegraphing answers, to efficiently filter and recruit suitable participants.
11. Compensate & Engage Interviewees
Pay interviewees sufficiently (e.g., $125/hour for typical consumers) and ensure their engagement (e.g., by confirming NDAs) to maximize show-up rates for your scheduled interviews.
12. Keep Prototypes Simple, Clear
Design prototypes as simple, flat visuals (e.g., PDF homepages) that clearly articulate distinct value propositions, avoiding complex functionality to prevent overcommitment.
13. Visually Differentiate Prototypes
Make your three prototypes visually distinct (e.g., by color) so that observers can easily refer to and track feedback for each specific concept during discussions.
14. Meticulously Proofread Prototypes
Carefully proofread all prototype materials to eliminate errors, as mistakes can undermine the validity and credibility of your concepts with interviewees.
15. Draft Two-Part Interview Guide
Structure each one-hour interview into two parts: first, a discovery conversation about past experiences, and second, a comparison and contrast of the prototypes.
16. Build Rapport with Smile
Begin interviews with a genuine smile and light conversation to quickly build rapport, put the interviewee at ease, and encourage open, responsive dialogue.
17. Practice Interviewing Skills
Develop and practice a “listener character” for interviews, embodying extreme curiosity and focus on the person, which differs from a typical founder’s pitching mindset.
18. Stream Interviews One-on-One
Conduct interviews one-on-one with the customer via Zoom, live-streaming to the observing team to maintain focus and comfort for the interviewee.
19. Assign Manual Note-Taking Roles
Have team members manually take notes in collaborative documents and rotate roles, as this promotes active engagement and prevents passive observation.
20. Use Backchannel for Questions
Utilize a Slack channel for team members to share observations and pass specific, judicious questions to the interviewer, who can then incorporate them into the conversation.
21. Lead Debriefs with Decider
After each interview, have the product owner or founder lead a debrief session using a structured spreadsheet to capture key learnings and ensure alignment.
22. Complete Individual Takeaways Form
At the end of the sprint, have each team member independently and quietly fill out a “Big Takeaways” Google Form to capture individual insights and next steps.
23. Predict Outcomes Before Interviews
Ask the team to predict specific outcomes and learnings before the interviews begin to capture initial hypotheses and provide a baseline for measuring new insights.
24. Counter Hindsight Bias
Compare actual learnings from the sprint to the team’s initial predictions to highlight new knowledge gained and counter the natural tendency to believe insights were “obvious” all along.
25. Prioritize Past Behavior
When evaluating customer feedback, give more weight to their descriptions of past experiences and behaviors rather than their predictions of what they would do in the future.
26. Actively Police Confirmation Bias
Encourage team members to jokingly “police” each other during watch parties, challenging assumptions and biases to ensure an objective interpretation of customer feedback.
27. Know When to Conduct Sprint
Use the Bullseye Customer Sprint before significant building investment, when expanding to new customer groups/markets, or when current product traction is not meeting expectations.
28. Inability to Recruit is Red Flag
If you struggle significantly to recruit your narrowly defined bullseye customers, consider it a strong signal that your target audience may not exist or is too hard to reach.
29. Access Free Learning Resources
Utilize the free book, demo videos, worksheets, and resources available at learnmorefaster.com to deepen your understanding and implementation of the sprint method.
30. Share Your Sprint Experiences
Provide feedback to Michael Margolis ([email protected] or LinkedIn) on how you’ve used or adapted the sprint, helping to refine and improve the open-source methodology.
5 Key Quotes
A bullseye customer is the very specific subset of your target market who initially is most likely to adopt your product or service.
Michael Margolis
Comically narrow is exactly what it is.
Michael Margolis
Now I know what no looks like.
Michael Margolis
Humble inquiry is the gentle art of asking instead of telling.
Michael Margolis
If you don't know, you're like, it's probably a no.
Michael Margolis
1 Protocols
Bullseye Customer Sprint
Michael Margolis- **Step 1: Agree on Goals and Key Questions** (45-minute meeting): Identify what the team wishes they knew, what keeps them up at night, and their hypotheses/assumptions about the product and customer. This informs who to talk to.
- **Step 2: Define Your Bullseye Customer**: Conduct a 'bullseye exercise' with the team, asking questions to narrow down the exact bullseye customer. Focus on inclusion criteria, exclusion criteria, and specific trigger events that make someone ready for the solution. Aim for a 'comically narrow' definition.
- **Step 3: Recruit and Compensate Participants**: Translate bullseye criteria into a screener questionnaire, avoiding telegraphing right answers. Use services like User Interviews or Respondent to find participants. Recruit 5 bullseye customers and compensate them sufficiently (e.g., $125/hour for consumers, $400/hour for professionals) to ensure high show-up rates.
- **Step 4: Create Effective Prototypes**: Develop three distinct, simple prototypes (e.g., PDFs, flat images in Figma) that represent different value propositions or feature sets. Ensure they look different (e.g., green, blue, red) for easy identification and are carefully proofread to maintain credibility. Focus on clearly articulating the distinct value proposition and problem solved for each.
- **Step 5: Draft Your Interview Guide**: Create a one-hour interview guide structured in two parts. The first half is a 'discovery interview' to understand past experiences, attitudes, and opinions related to the problem. The second half involves presenting and comparing the three prototypes, allowing participants to tease out preferred aspects. Build rapport and maintain genuine curiosity throughout.
- **Step 6: Conduct the Watch Party**: The interviewer conducts five one-on-one interviews (e.g., via Zoom live stream). The core team watches the live stream (not in the same Zoom call), takes manual notes collaboratively (assigned roles), and uses a Slack channel for background chatter/passing notes to the interviewer. After each interview, the team debriefs using a structured spreadsheet to capture key learnings. At the end, each team member independently fills out a 'big takeaways' Google Form, and these learnings are compared to initial predictions to highlight insights and show the value of the research.