For venture-backed founders · $500K–$10M+ ARR

The demos go well.
The deals don’t close.

Buyers lean in, ask good questions, tell you it’s impressive — and then go quiet.

You’re generating interest. You’re not generating urgency. Those feel identical on a call and they are not the same thing, and every month you spend fixing the wrong one is a month of runway you don’t get back.

What I do: I run the 5-Day SPRINT GTM Reset — four sessions, four dedicated hours of your time, one page that names the real constraint in your revenue motion. For founders past that point, I also place Founding AEs.

Fix the motion in 5 days → See how the Sprint works

Featured in Harvard Business Review

300+ founder conversations since May 2025

The first 250+ became the basis for the HBR article “Startup Founders Need a New Sales Playbook” →

What does Dave Rubinstein do?

Dave Rubinstein is a GTM advisor and Founding Account Executive recruiter for venture-backed B2B SaaS founders between $500K and $10M+ ARR. The 5-Day SPRINT GTM Reset is four working sessions across five days — four dedicated hours of your time — that name the single constraint stalling your revenue motion and leave you with one page you can run Monday. For founders whose motion already works, he also places Founding Account Executives: the first dedicated sales hire.

The 5-Day SPRINT GTM Reset

Five days. One page. The real constraint.

You leave with one page: the constraint, why it’s that one, and what to do about it first.

What happens

I ask what nobody else has asked you.

Is the motion actually working, or has winging it just stopped scaling? Four sessions of questions most advisors won’t ask — because they’re working from a playbook that closed deals in 2021, when money was free and buyers said yes to pilots. Mine comes from 300+ founders this year, in the market you’re selling into now.

Four dedicated hours of your time — the five days are the calendar, not the workload.

How it works →

After five days with Dave, nexwise reframed the problem, sharpened the ICP, and left with a clearer way to tell which deals were real. From "fix for broken shops" to a board-level constraint.

Mathis Stolz

Founder, nexwise

Already know the motion works and the hire is the next move? I place Founding AEs too →

Not ready for a conversation yet?

Most founders are wrong about their own constraint.

The thing you're trying to fix is usually a symptom of something upstream. Twelve questions, under five minutes, and you get your primary GTM constraint named — plus where you stand on all six dimensions. No email needed to see the result.

Take the diagnostic →

Free. Built from 300+ founder conversations since May 2025.

About

Why the diagnosis is current

Most GTM advice is a fossil — a playbook that worked when the advisor was last carrying a number. Mine is 300+ conversations with founders across 40+ countries since May 2025: what is closing, what is stalling, and what stopped working the moment money stopped being free. I've run the motion too — founding AE at gen.video (zero to $10M ARR), six years in sales leadership at Salesforce, $1M to $25M at Outreach. That's why I can read a motion. The 300+ is why the read is current.

300+

founder conversations in the last 12 months

$10M

ARR built as a founding AE at gen.video (formerly ExpoTV)

40+

countries — not one market’s playbook

25×

territory growth at Outreach. $1M to $25M

6 yrs

in sales leadership at Salesforce

HBR

the work became a Harvard Business Review article

More about Dave →

Common questions

What is the 5-Day SPRINT GTM Reset?

It’s four working sessions across five days that name the single constraint stalling your revenue motion. It takes four dedicated hours of your time — the five days are the calendar, not the workload — and you leave with one page you can run the following Monday.

Who is the SPRINT GTM Reset for?

Venture-backed B2B SaaS founders between $500K and $10M+ ARR whose founder-led selling has started to stall: demos that go well, deals that don’t close, and no reliable way to tell which conversations are real.

Do I need a GTM reset or a Founding Account Executive?

If the motion still lives in your head, fix the motion first — a Founding AE hired into an unrepeatable motion usually fails within a year. If the motion already works and you just can’t run it alone, the hire is the next move.

What happens in the first conversation?

Thirty minutes, no pitch. The goal is to work out whether your constraint is the motion, the message, the market, or the hire — and to tell you honestly if a Sprint isn’t what you need.

Twenty-three demos. Two closed.
That’s not a volume problem.

That was one founder’s last quarter before we found the constraint — twenty-one conversations that went nowhere, and no idea which of them were real. Five days to name what’s actually breaking — four dedicated hours of your time — before you spend another quarter fixing the wrong thing.

Book a 30-Min Conversation → See the deliverable

The demos go well.The deals don’t close.

You know something is broken.You don’t know what.

Five days. One page. The real constraint.

Why the diagnosis is current

Twenty-three demos. Two closed.That’s not a volume problem.

The demos go well.
The deals don’t close.

You know something is broken.
You don’t know what.

Twenty-three demos. Two closed.
That’s not a volume problem.