White paper · 6 November 2026

A go-to-market operating system for the founder who still has to sell

By Mike Sullivan. This paper lines up the book Founder and Small Team GTM, public market research, and the GTM OS product. It does not publish source code.

A solo founder go-to-market strategy in 2026 has one rule: automate the predictable work, and keep a person on anything a buyer will read. Building the product got cheap. Getting a reply did not. The two products sold as the fix, an autonomous AI SDR and a custom stack that needs a GTM engineer, both fail the constraint a founder actually has.

Three ways to run outbound, and why two of them break

Autonomous AI SDRs, sold as digital workers, promise a pipeline with no human in the loop. Public prices run from about $3,000 to more than $10,000 a month. A custom workbench (enrichment, warehouse, workflow glue) is more honest about control, and it assumes someone whose median posted salary is about $160,000 a year.

The Signal's 2026 audit of 62 fast-growing private B2B companies above $10 million ARR, including companies such as Rippling, Vercel, Ramp, and Drata, found a different buying pattern:

Those companies did not replace sellers with an unmonitored agent. They bought data and a system of record, then staffed the glue. A founder cannot copy that org chart. GTM OS is the third option: one go-to-market operating system where the draft is automatic and the send is not.

The constraint triangle

Every tactic in the book has to survive three limits. Budget: $0 to $400 a month in software. Time: 5 to 7 hours a week on acquisition, with most of that on live conversations. Headcount: the founder, or the founder plus one generalist. Enterprise seats and a $5,000 AI SDR fail the budget before they fail the strategy.

The matching sales method is diagnostic, not a pitch. Dixon and McKenna's work on millions of B2B conversations found that a large share of stalled deals end in no decision, not a loss to a rival. So the founder looks for a reason to disqualify. On a 30-minute call, three checks are enough for a $49 to $5,000 offer:

• Pain. Is there a specific problem to solve now?
• Impact. What does it cost, in money or time, to leave it for 6 to 12 months?
• Decision. Can this person buy, or who else has to?

That is the discovery call framework. The buyer talks about 70% of the time. The offer comes after the diagnosis. A read of pace and focus (fast or slow, task or people) picks the DISC register: direct for Dominant, story for Influence, a safe sequence for Steadiness, and the exact plan for Conscientiousness. In the product you do not guess that style. You select it.

What GTM OS ships, checked against the product

The manuscript is the playbook. GTM OS is the place the founder runs it. Counts below are the live product, not a roadmap.

• 50 courses and 502 lessons in English, with the same 502 in Spanish and in Portuguese.
• Scored practice is four menus. Industry, buyer, methodology, and call type. The founder can practice out loud, then score a real call on the same criteria.
• One context for the coach, the draft, the call brief, and the pipeline. Approved proof is the only proof the model may use.
• Seven confirm-gated skills: notes, the next action, a follow-up, outreach, discovery questions, a new person, and advancing a deal. Nothing is sent and no record changes until the founder confirms. Email goes out through the founder's own Resend or Brevo key.
• A daily list of who to contact, built from stale deals and follow-ups that are due, inside a 5 to 7 hour week.

The four menus, as they ship:

Industry (12). Agencies and consultancies, DevTools and developer infrastructure, e-commerce / DTC, EdTech, FinTech, HealthTech, HR tech / recruiting, manufacturing, MarTech / AdTech, professional services, real estate / PropTech, and SaaS software startups.

Buyer. A job title crossed with D, I, S, or C. The list follows the industry. Agencies offers CEO / Founder, VP of Sales, VP of Marketing / CMO, Director of Operations, CFO / Finance Director, and Procurement Manager, each in all four styles. Other industries add engineering, product, growth, and security buyers. The catalog is 16 roles, each in four DISC styles. Not every role appears in every industry.

Methodology. MEDDIC, SPIN, or Challenger.

Call type. Discovery meeting (the default), cold call, outbound discovery call, or follow-up after a no-decision. The last three are marked voice recommended.

Practice is not the product by itself. A weak score becomes one task for the next real conversation, and the founder records what the buyer did.

What to do this week

1. Do not hand first-touch outbound to an unmonitored agent. Validate the message by hand on a small list before any sequence.
2. Write the ICP in one paragraph, then disqualify anyone outside it.
3. Run the next call as pain, impact, and decision. Adapt the close to the DISC read.
4. Keep software inside the $400 cap. If a tool needs a second hire to operate, it is the wrong tool.
5. Put the approved proof, the pipeline, and the next draft in one place so the coach is not guessing.

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