The Ecommerce Playbook Podcast

Hosted ByTaylor Holiday & Richard Gaffin

2020 transformed the world of ecommerce forever. For the modern DTC brand, the rewards have never been greater. But the waters have also never been choppier, and the way forward has never been more uncertain. So how do you navigate this dangerous new reality? No matter how you do it, you’d better not do it alone. That’s where the Ecommerce Playbook Podcast comes in — join Common Thread Collective’s Taylor Holiday & Richard Gaffin as they bring you guiding insights from across CTC’s portfolio of growing DTC businesses. Whether you need a clear view on the macro issues affecting the world.

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The Ecommerce Playbook | How We Forecast $4B in GMV to 3% Accuracy

June 24, 2026 The Ecommerce Playbook Podcast 00:23:14
The Ecommerce Playbook Podcast
The Ecommerce Playbook Podcast
The Ecommerce Playbook | How We Forecast $4B in GMV to 3% Accuracy
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Every forecast is wrong. The question is whether yours is useful.

Luke Austin, walks through the CTC Methodology series opener: a complete operating model for making profit predictable across ecommerce brands. This is not a spreadsheet. It is a four-step system built on 12 years of experience and $4 billion in GMV, combining proprietary data science with daily operational discipline to hit 3% forecast accuracy at scale.

Topics covered in this episode:

  • Why all models are wrong and what makes the best ones useful

  • The “tigers not mice” framework for prioritizing what actually matters

  • Qualitative planning: how a 12-month marketing calendar becomes a mathematical input

  • The Spending Power (AMER) model and three optimization modes for new customer spend

  • Cohort LTV modeling: why active vs. lapsed customer distinction changes everything

  • The Event Effect model: how marketing moments get quantified, not just scheduled

  • Building a full P&L forecast from customer cohorts up, not channel metrics down

  • Why contribution margin is the north star metric, not ROAS

  • Plot, Pivot, Profit: the daily cadence that makes forecasts self-correcting

  • The “What / So What / Now What” daily operating format used by CTC profit engineers

  • Results: 3% forecast accuracy across $4B GMV, 32% avg revenue growth, 41% avg CM growth

This is Episode 1 of the CTC Canon Series. The Canon represents CTC’s cumulative operating principles across 12-plus years and hundreds of brands, covering forecasting, media buying, creative strategy, email, and media measurement.

Show Notes: