Libby Weissman

Cohort 1

Cohort 2

Whether you're tweaking plans to hit Q4 goals or planning for 2025, the Payback Calculator will help you make smarter tradeoffs and get buy-in from finance. With this tool, you can:<ul><li>Plug in 6-10 assumptions and generate actionable insights.</li><li>Estimate the payback period for various cohorts of new customers.</li><li>Equip yourself with the knowledge to present confidently in budget discussions with finance. </li></ul> This calculator has two tabs: one for transactional and one for subscription businesses.

CAC Payback Period Calculator

This is a real example of an acquisition model I used as a VP Marketing. Finance often models acquisition in very simple terms (for example: budget divided by CAC or traffic x CVR). As a marketing leader, building your own bottoms-up model helps you to figure out what inputs to focus on, where to direct your team's time, and navigate making tradeoffs. In the Growth Modeling &amp; Other Quant Skills course we'll build a version of this for your company, and tie it together with retention &amp; monetization models to give you a full picture of your P&amp;L.

Sample Bottoms-Up Acquisition Growth Model

Executives and senior leaders who set strategy, lead teams, and drive organizational outcomes.

Marketers who drive brand awareness, customer acquisition, and growth across channels.

Using data and metrics to measure performance, run experiments, and inform decisions.

Driving user acquisition, activation, retention, and monetization through product-led growth strategies.

Annual planning is here 😅. Learn how to build and use a growth model to set strategy, navigate trade-offs, and secure your 2025 budget.

Growth Modeling for Marketing Leaders 

Director of Marketing

Senior Marketing Manager, Consumer Growth

Product Launcher

Head of US Growth Sorare

Fellow

Founder

Fractional head of growth

Head of marketing

As a marketer, you likely started by focusing on a single channel or discipline, managing resources (budget, creative, time) to maximize results. Now, as you’ve grown in your career, your role demands making strategic tradeoffs across multiple initiatives and communicating the “why” behind those decisions to the wider organization. With year-end goals and 2025 planning top of mind, this course will help you build a bottoms-up growth model that allows you to confidently navigate tradeoffs, set your strategy, and gain buy-in from stakeholders—whether it’s your CFO, CEO, or other key decision-makers. In this course, you’ll:•	Build a growth model that directly ties to your marketing objectives.•	Learn how to justify resource allocation and influence key business decisions using your model.•	Communicate your strategy persuasively, aligning marketing goals with broader business metrics like revenue and profitability. Plus, if you’re newer to spreadsheets, I offer bonus sessions to help you master the basics and ensure you’re fully equipped to use these powerful tools.

Become a more effective and confident marketing leader

Course syllabus

<ul><li>Presentation with Libby</li><li>Q&amp;A and group discussion</li></ul>

5 Live Classes

Optional additional content for students who are less familiar with Google Sheets

Video Lessons on Google Sheets

Students are encouraged to work through practical applications of what is covered in the weekly session

Weekly Projects

<ul><li>AMAs with Libby</li><li>Peer networking opportunities</li><li>1:1 input on projects</li></ul>

Optional Office Hours

Course schedule

VPs/Heads of Marketing who need support prioritizing marketing tactics, making tradeoffs, and getting buy-in from founders and CFOs

Senior Managers or Directors of Growth Marketing who own one channel and want to move up to manage a bigger team

Brand, Content, or Product Marketing Leaders who are looking for a crash course in quantitative skills and the language of "growth"

Who is this for

What you'll get out of this course

<ul><li>Build a bottoms-up growth model covering acquisition, retention &amp; monetization</li><li>Understand how different marketing levers impact financial goals</li><li>Learn everything you need to know about managing a model in Google Sheets</li></ul>

Gain quantitative skills to help you set goals & strategy with confidence

<ul><li>Develop expertise in scenario modeling</li><li>Learn how to use scenarios for more effective stakeholder engagement and consensus-building</li></ul>

Learn how to get buy-in on your marketing strategy

<ul><li>Craft a focused and impactful marketing strategy that effectively guides your team's efforts and resources</li><li>Walk away with tactical changes you can apply to your own work right away</li></ul>

Create an actionable marketing strategy, plan & goals

<ul><li>Establish a rigorous operating cadence to drive accountability and consistently achieve planned objectives</li><li>Learn about best practices applicable across companies of all sizes</li></ul>

Learn directly from Libby Weissman

Libby Weissman

Courses

Growth Modeling for Marketing Leaders

Lightning Lessons

Master 2025 Marketing Budget Negotiations

Resources

Sample Bottoms-Up Acquisition Growth Model

CAC Payback Period Calculator

CAC Payback Period Calculator

Sample Bottoms-Up Acquisition Growth Model