Product-Led Growth vs. Sales-Led Growth: When to Use Which
PLG is not always the answer. Neither is a big sales team. The right model depends on your ACV, buyer, and market. Here is how to choose.
Key Takeaways
- PLG works best when ACV is below $10K, the buyer is the user, and the product can demonstrate value without a sales conversation.
- SLG works best when ACV is above $25K, the buyer is not the user, and the purchase requires organizational buy-in.
- Most companies between $10K-$25K ACV need a hybrid model: product-led acquisition with sales-assisted conversion.
- The wrong motion costs 18-24 months of wasted effort. Choose based on data, not trends.
A SaaS founder asked me last month: "Should we go product-led?" My first question back: "What is your average contract value?"
"Around $35K."
"Then no. Not yet."
PLG is powerful. It is also overhyped. For every Slack and Figma, there are hundreds of companies that tried PLG with the wrong product, the wrong buyer, and the wrong ACV, and burned 18 months figuring out it did not work.
The Decision Framework
When PLG Wins
PLG works when three conditions are true:
- ACV below $10K. The deal size does not justify a sales rep's time. Self-serve is the only economical acquisition model.
- Buyer is the user. The person who pays is the person who uses the product. No committee, no procurement, no 6-month approval process.
- Value is obvious fast. The product can demonstrate value within minutes or hours, not weeks.
If all three are true, PLG is your best bet. Build a free tier or trial, invest in onboarding UX, and let the product sell itself.
When SLG Wins
SLG works when:
- ACV above $25K. The deal size justifies (and often requires) a dedicated sales process.
- Buyer is not the user. The CFO signs the check, but the engineering team uses the product. Multiple stakeholders need convincing.
- Value requires explanation. The product's impact is significant but not self-evident. It takes a demo, a proof of concept, or a pilot to prove ROI.
The Hybrid Zone ($10K-$25K ACV)
Most growth-stage companies live in this middle ground, and it is the trickiest to get right.
The hybrid model: use PLG for acquisition (free trial, freemium, or low-cost starter plan) and SLG for conversion and expansion (sales reps engage when usage signals buying intent or when the deal size exceeds the self-serve threshold).
Companies I have worked with that nail this hybrid see 30-40% of revenue come through self-serve and 60-70% through sales-assisted conversion. The self-serve funnel feeds qualified leads to sales, and sales focuses only on high-value opportunities.
The Costly Mistakes
Mistake 1: PLG with a complex product. If your product requires configuration, integration, or organizational change management to deliver value, a free trial will not convert. Buyers will sign up, get confused, and leave.
Mistake 2: SLG with a $5K ACV. If you are spending $8K to acquire a $5K customer, the math does not work no matter how good your sales team is.
Mistake 3: Switching motions too fast. Companies that flip from SLG to PLG (or vice versa) without testing the unit economics first lose 12-18 months of momentum.
Your First Step
Score your product on the three PLG conditions. ACV, buyer-is-user, and time-to-value. If you score 3/3, go PLG. If you score 0-1/3, go SLG. If you score 2/3, test a hybrid with a small cohort before committing.
Book a diagnostic if you want help choosing and designing your growth motion.