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Growth engine: Flywheels, acquisition motions, and experiment runway

By Sculptor team

Design FLY-001 flywheels and ACQ-001 motions—for startup traction systems and enterprise expansion loops tied to NSM-001.

  • startup strategy
  • strategy pack
  • growth engine
  • FLY-001
  • flywheel
  • acquisition
  • experiment runway

If you are building a company and feel lost about startup growth engine flywheel, you are not alone. This phase exists so your Strategy Pack stays honest—not pretty.

What this phase is really about

Growth strategy connects how product, marketing, and sales compound—not a list of hacks. You name flywheels, primary acquisition motions, expansion levers, and a prioritized experiment runway with kill rules. Startups need focus; enterprises need coherence across regions and SKUs.

In Sculptor, GrowthEngineAgent keeps the conversation anchored to Growth so you do not mix this work with other phases. That separation is how consultants run engagements: one room, one decision set, one artefact pack.

Why teams skip this (and regret it later)

Teams chase channels without a system. Without FLY-001, marketing and product optimize different metrics, CAC rises, and nobody can explain what actually drives retention.

Questions this phase must answer

  • Which loops compound value for our ICP?
  • What is the primary vs secondary acquisition motion?
  • How do experiments map to NSM-001?
  • What kill rules prevent zombie initiatives?
  • Where do we defer detail to /marketing or /sales?
  • Which expansion levers tie to CX moments?
  • What partner or community loops exist (defer to /partners, /community)?
  • How does unit economics constrain scale (FINC-*)?

Deliverables you should leave with

Growth artefacts connect product flywheels, acquisition motions, expansion loops, and experiment runway—each citing MKT-001, SALES-001, and NSM-001 when present.

  • FLY-001 flywheel map with named loops
  • ACQ-001 primary and secondary motions
  • EXP-001 / ENG-001 expansion and engagement levers
  • Prioritized experiment runway with owners

What to prepare before you start

  • MKT-001 channel plan and SALES-001 motion when available
  • NSM-001 and PMF metrics
  • Finance headline CAC/LTV assumptions

Who should own the answers

Head of growth or product lead owns FLY-001; marketing and sales validate motion fit; finance sanity-checks experiment economics.

How this connects to the rest of your pack

This phase sits in the Go-to-market group on the Strategy Pack journey.

Previous: Earlier phase

Next: Next phase

See the complete phase guide for all specialists.

Examples from the real world (names changed)

A B2B SaaS vendor FLY-001 named a “customer proof loop” where case studies fed outbound, cutting CAC payback by two months.

A fintech app ACQ-001 paired referral credits with activation KR, aligning growth experiments to NSM-001 not installs alone.

Use this in Sculptor tomorrow

  1. Open Sculptor and create or open a workspace project.
  2. In Chat, type /growth or pick Growth from the command palette—the same rules apply as the slash.
  3. For breadth, start an Agentic Strategy Pack run; the phase executes in journey order and saves library assets.