Eight months ago I was three weeks away from hiring a full-time GTM person. The job description was drafted. The number — $120K–$130K base — was in my head. I was this close.
I didn't hire. Not because the budget fell through, but because I decided to test something first: what if I replaced the actual work — not the strategy, not the judgment — just the execution? Could I run a real GTM motion with prompts instead of people?
Here's exactly what happened.
The GTM role I was about to hire for wasn't one job. It was four jobs compressed into one salary:
| Function | What it required weekly | What I was doing instead |
|---|---|---|
| Outbound prospecting | 8–10 hrs: list building, sequencing, sending | Not doing it consistently |
| Follow-up management | 4–6 hrs: tracking every open deal, timing re-engagements | Remembering when I remembered |
| Content production | 5–7 hrs: posts, blogs, email copy | Writing when I had gaps (rarely) |
| Pipeline hygiene | 3–4 hrs: CRM updates, stale deal flags, reporting | Quarterly at best |
Combined: 20–27 hours of execution work per week. I had 4–6. The math was never going to work without adding headcount — or changing what "running GTM" actually required from me.
The premise was simple. I'd write one brief at the start of each week — who I was targeting, what the message angle was, what follow-ups needed to go out. Then Sandbox would handle the execution: build the sequence, schedule the sends, produce the content brief, flag warm leads.
My Monday morning input looked like this:
That was it. 15 minutes, once a week. The execution ran from that input.
The first month was uncomfortable. Outreach was going out every day and I wasn't writing each email. Content was publishing and I hadn't spent three hours on it. Sequences were running and I wasn't monitoring them hourly.
I kept waiting for it to break. It didn't.
By the end of month one: 87 cold contacts reached. 54% open rate on the first campaign. Zero replies — but I'd expected that. Email sequences take time to warm. What I hadn't expected: I had 4–5 hours back every single week I'd previously spent on GTM admin.
This is what nobody tells you about running a consistent GTM motion: it compounds in ways that sprints don't.
By month three, the campaigns had follow-up sequences running automatically on everyone who'd opened but not replied. By month four, I had 200+ contacts in active sequences, a content library of 40+ posts driving inbound discovery, and — for the first time — a pipeline that hadn't gone quiet during a heavy delivery month.
The content was doing something else I hadn't anticipated: warm inbound. Prospects I'd never contacted were finding the blog, reading it, and booking calls. Not a flood — but 2–3 per month from people who had already decided they liked how I thought about the problem before we ever spoke.
I want to be honest about what prompts didn't replace.
That's actually the point. I spent 3–4 hours a week on judgment work. The 20+ hours of execution work ran without me.
The thing that almost stopped me wasn't cost. It wasn't skepticism about whether AI could do this. It was the feeling that I should be more involved — that growth work required my direct time, not just my direction.
That belief was costing me. Not because I was bad at GTM, but because I was doing execution work that didn't require my specific judgment. I was the bottleneck in my own growth motion because I was treating execution like it was judgment.
The experiment that was supposed to last a month is still running. The GTM role I almost hired for? I never posted it.
8 months, one brief per week, 3–5 hours of founder time: 700+ prospects reached, 58–63% open rates, 175+ content pieces live, pipeline running continuously. The cost is $3K–$5K/month. The alternative was $160K+ per year and a 4-month ramp.
See what running GTM with prompts actually looks like — in 15 minutes.
Book a demo: cal.com/edgarinvillamar/15min
Or start directly: app.sandbox.co/signup
Questions? Email rob@sandboxgtm.com