Meta description: A four-part diagnostic framework for growth teams: prove whether your dominant channel is truly saturated before committing to a budget reallocation.

Klover proved YouTube sponsorships drive incremental conversions with a geo holdout test. This playbook shows how to build the same measurability system.

Klover cut Meta iOS dependency from 75% to under 45% and improved blended CAC by 12% using MMM and geo holdout testing. A four-phase channel diversification framework.

BlueAlpha proved beehiiv's $300K subway campaign drove ~100,000 incremental users at $4 CPA. This playbook shows how to run the same geo holdout test for any OOH campaign.

A five-phase growth framework for consumer AI SaaS: incrementality-first MMM, GeoLift testing, and CFO-ready measurement. Built on BlueAlpha benchmarks.