Doctor Market Fit

What to focus on next? Identify key pitfalls of your startup with this toolkit

Including 30+ business model examples and 30+ experiment for startups

13 hrs ago • Jeroen Coelen

5

Startup failure: It's never about timing

Stop blaming the market for your mistakes

Jan 10 • Jeroen Coelen

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4

20:13

I worked with 100+ founders last year. Here’s what the top performers did differently.

Reflections on 2025 to empower your 2026

Jan 2 • Jeroen Coelen

18

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December 2025

Three tips on selecting your target market

With examples from last week's mentoring

Dec 18, 2025 • Jeroen Coelen

11

2

1

Why you can't activate a passive market

Introducing Schrödingers problem

Dec 12, 2025 • Jeroen Coelen

18

1

Ultimate Guide to Interviews #4: Don't just ask for problems

How to get deep insights surrounding problems

Dec 4, 2025 • Jeroen Coelen

5

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November 2025

Doubt is the goldmine

Embrace uncertainty to increase momentum

Nov 26, 2025 • Jeroen Coelen

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3

2

Timing product launches, when to target corporate clients, and getting quality feedback

Three breakdowns of advice I gave last week

Nov 19, 2025 • Jeroen Coelen

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3

2

Why potential customers won't switch to your solution

Explained in two simple infographics, and what to do instead

Nov 12, 2025 • Jeroen Coelen

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3

4

5 reasons AI startups fail to find product-market fit

Lessons from working founders in the AI gold rush

Nov 5, 2025 • Jeroen Coelen

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2

October 2025

Ultimate Guide to Interviews #3: Framing the interview

Dozens of outreach message examples, 7 frames for an interview, and do's and don'ts.

Oct 29, 2025 • Jeroen Coelen

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Ultimate Guide to Interviews #2: Structuring and starting the interview

How to keep your baby in your bag?

Oct 22, 2025 • Jeroen Coelen

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