# How do we build a GTM growth model the exec team will actually agree on?

Get the assumptions in writing and signed before you model anything. The value of the exercise is the conflict it surfaces — where sales, marketing and finance are quietly using different ramp, conversion or retention numbers. That disagreement is the real find, not the output.

Watch two specific traps: logo load hiding behind dollar load (a rep carrying a reachable number across an unreachable number of accounts), and benchmarks used as answers when they are really unasked questions. Keep an assumptions tab that is signed off and versioned.

## Sources

- **Method** — [Growth Model playbook — Get it in writing](https://www.leanscale.team/knowledge/playbooks/growth-model-playbook/)

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Cluster: Territory · https://www.leanscale.team/knowledge/answers/growth-model-assumptions/