top of page


I'm a Consultant. Here's Why You Should Ignore People Like Me.
A consultant's case for ignoring people like him. Coaches, investors, mentors, and gurus all have opinions about your product — but only two groups bear the consequences of being wrong: your customers and your team. Who gets a vote, who gets a hearing, and the one-question filter that sorts them.

Jens Koester
6 days ago6 min read


Your Top-Down Target Is Fantasy. Your Bottom-Up Target Is Timid. The Gap Between Them Is Your Strategy.
Top-down goals are pure fantasy. Bottom-up goals are too conservative. The most useful number in your startup is the gap between the two—because closing that very gap is literally what a go-to-market strategy is all about. In this blog post, learn how B2B and B2C founders set realistic MRR/ARR goals.

Jens Koester
Jul 136 min read


Every ICP Guide Says "Analyze Your Customer Data." You Have Three Customers.
Every ICP guide starts with "analyze your customer data." You have three customers. Here's how founders actually build an ideal customer profile and 2–3 buyer personas — as a testable guess, not a template exercise — using the conversations you've already had and real humans instead of fictional characters with stock photos.

Jens Koester
Jul 57 min read


You're Losing Deals Somewhere Specific. Most Founders Have No Idea Where.
Most founders have no idea why a deal is not closed. They answer in vibes. Every guide on "conversion funnel analysis" assumes you have a data team. You don't. Here's the whiteboard version: map your real funnel and find the one leaky step that matters.

Jens Koester
Jun 296 min read


The Last Meeting Should Be a Formality. It's Almost Never a Formality.
The last meeting should be a formality. It almost never is. A founder's diary on the cruelest stage of any deal — the price you'd settled comes roaring back, and a stranger who was never on a single call appears to blow the whole thing up. Why it happens, and what a decade of closing taught me to do.

Jens Koester
Jun 216 min read


AI Is the Best Prep Cook You'll Ever Hire. Here's How I Use It Every Day in Sales.
AI won't close your deals — but it's the best prep cook you'll ever hire. The concrete, daily ways a sales consultant actually uses AI: the 90-second prospect dossier, the objection sparring partner, the follow-up factory, the strategist on retainer.

Jens Koester
Jun 145 min read


Your B2B and B2C Startups Need Almost Opposite Sales Strategies. Here's How to Pick Yours.
Every "B2B vs B2C" article explains what the words mean. The real question is which strategy to actually run — and what to do when you're somehow both. A sales consultant's straight answer for 2026.

Jens Koester
Jun 76 min read


The Best Sales Lessons I Ever Learned Came from a Bakery, a DJ Booth, and a Soccer Pitch
The best sales lessons I've ever learned came from a Berlin baker, a DJ, a line cook, a soccer coach, and a bartender — not from a single sales book. A field guide to the sales wisdom hiding in everyday craft, plus some life advice for founders who are running on fumes.

Jens Koester
May 317 min read


Nobody Tells You That Selling Your Own Startup Is Lonely. So I Will.
Nobody warns founders that selling your own product is lonely. That you'll be the only one in the room when the rejection lands. A sales consultant's honest diary of the 4pm doubt spiral, the ghosting, the awkward follow-up, and the Friday call that makes it all worth it. With a survival checklist for the hard days.

Jens Koester
May 246 min read


AI Will Not Save Your Sales Process. But It Will Expose It.
Every consultant is telling you to "balance AI with humans." Nobody is telling you which half is which. A startup sales consultant's honest take on what to actually automate in sales, what to never let AI touch, and the one-line test that decides every time. With a one-page checklist.

Jens Koester
May 176 min read


Your First 10 Customers Will Be Awkward, Slow, and Underpriced. That's the Job.
The first 10 customers aren't a marketing problem, they're a courage problem. A no-fluff field guide for founders who are tired of being told to "do things that don't scale," with a one-page checklist you can actually use this week. From a consultant who's worked with 500+ startups.

Jens Koester
May 106 min read
bottom of page