THE SHORT ANSWER
Product-led growth lets product use drive acquisition or expansion. Sales-led growth uses human selling to diagnose and coordinate a purchase. Marketing-led growth creates and converts demand through audiences and channels. Partner-led growth relies on another organization for access, trust or delivery. Fit depends on price, complexity, customer size, trust and implementation needs.
Compare the primary engine
| Motion | Primary engine | Key dependency |
|---|---|---|
| Product-led | Self-service use and product experience | Fast path to value and low-friction adoption |
| Sales-led | Human discovery, persuasion and coordination | Qualified pipeline and effective sales process |
| Marketing-led | Demand creation and conversion | Audience access, message and funnel |
| Partner-led | Third-party access, trust or implementation | Aligned incentives and partner enablement |
Choose from buying reality
- Product complexity and configurability
- Price and customer size
- Number of people involved in the decision
- Security, compliance and trust
- Ability to experience value before purchase
- Onboarding and implementation effort
- Need for education or category creation
- Customer support and expansion model
Evidence & context: OpenStax, Rice University
Design hybrids around handoffs
A customer may discover through content, try the product, speak with sales for procurement and use a partner for implementation. The useful question is which motion owns each stage and what evidence passes between them.
Unclear handoffs create duplicate outreach, lost context and promises that onboarding cannot fulfill.
Measure the entire motion
Compare customer quality, conversion, time to value, retention, cost and human effort. A high signup rate does not establish product-led fit if most users never activate.
Use activation and onboarding to examine that handoff.
Evidence & context: Google Analytics Help
Sources & further reading
- The Use and Value of Marketing Channels
OpenStax, Rice University. Open educational material on how channels create access and deliver value. The GTM module extends channel thinking to startup acquisition and learning contexts.
- The Business-to-Business Market
OpenStax, Rice University. Open educational material on organizational buyers and buying situations. Actual B2B decision roles and procurement requirements vary by customer and purchase.
- Life cycle collection
Google Analytics Help. Official product documentation organizing reports from acquisition through engagement, monetization and retention. It is one analytics implementation, not a complete GTM measurement model.
Examples and exercises are illustrative unless attributed to a source. No independent expert review is claimed.
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