The cash void: when growing sales puts a company at risk

Founder-led companies are often told to grow sales at all costs. But as revenue increases, the constraint can shift from demand to delivery capacity, unit economics, working capital, profitability, or the systems needed to manage the business. Growth that outpaces the operating model can create more complexity, more cash pressure, and more risk.

In this episode of Liquid: How CFOs Outperform, Thomas Gavaghan speaks with Cruz Gamboa, founder of Ascend Growth Ventures and ScalingCFO.io, about the dangerous transition from $1 million toward $10 million in revenue. Cruz explains his concept of the “cash void,” why a healthy P&L does not guarantee liquidity, and why management teams should focus on solving the company’s biggest constraint before pushing for more growth.

Drawing on 25 years in Fortune 500 finance, including senior roles at GE Power and GE Capital, Cruz also discusses how AI is changing the CFO role. He argues that AI may automate much of the technical work traditionally associated with finance, but it cannot replace the judgment, leadership, trust, and communication required to influence decisions and earn a seat at the table. The conversation also explores career identity, golden handcuffs, and the importance of knowing when to reframe a situation or make a change.

What you need to know

Cruz Gamboa explains why sustainable growth requires more than increasing revenue. The through-line of the conversation is that management teams need to understand the timing and consequences of growth, identify the company’s biggest constraint, and build the financial and leadership systems required to scale with discipline.

Profitability does not guarantee liquidity

Cruz’s “cash void” describes the gap between a company’s economic engine and its liquidity engine. A business can show strong revenue and margins while still struggling to convert those results into cash.

That gap can come from financing customers, carrying inventory, investing in marketing, hiring ahead of demand, or making bets with payback periods that do not match the company’s available capital. Cruz explains why founders need visibility into unit economics, customer acquisition costs, contribution margins, cash conversion, and the timing of every major investment.

Growth can outpace the operating model

From zero to $1 million, sales is often the primary constraint. Companies need to find product-market fit, prove their offer, and build momentum. But as the business grows, the constraint may shift to delivery, customer acquisition, profitability, working capital, or the team’s ability to execute.

Cruz argues that “just grow sales” can become dangerous when founders continue pushing the same lever after the business has entered a new stage. The right question is not always how to generate more revenue. It is what is currently preventing the company from growing sustainably.

Sustainable scale requires constraint management

Drawing on Eliyahu Goldratt’s The Goal and the Theory of Constraints, Cruz argues that the management team’s most important job is to identify and remove the single biggest constraint holding back the business.

He describes business as a flow system, where sustainable growth comes from increasing flow while reducing resistance. That requires more than a financial model. Cruz emphasizes the importance of a 13-week cash flow forecast, a predictable operating model, clear ownership of the P&L and balance sheet, and a regular cadence for reviewing performance and correcting course.

He also shares a real example in which broken marketing funnels prevented paid leads from flowing into a CRM system, making more than $500,000 in paid leads difficult to track.

AI will raise the bar for CFOs

Cruz believes AI can replace CFOs who define their value primarily through forecasts, variance analysis, reporting, and financial models. But AI cannot replace the judgment required to assess whether assumptions are realistic, whether the team can execute, or how capital should be allocated.

As finance, systems, data, integration, and technology increasingly converge, CFOs will need to become more comfortable with AI and process design. For younger finance professionals, Cruz sees systems thinking, automation, data management, and integration as important ways to build value in an AI-enabled workplace.

Influence is earned through trust and communication

Technical expertise is only one part of becoming an effective CFO. Cruz argues that finance leaders earn influence by building trust, communicating clearly, challenging assumptions constructively, and helping the broader team make better decisions.

The episode also explores the personal side of leadership and career development. Cruz reflects on staying too long in a role, the psychological nature of golden handcuffs, the value of vulnerability, and the importance of investing in personal growth, not just technical skills.

Additional topics covered in this episode

• Why founder-led companies often need to transition from entrepreneurial execution to more professional management.

• How clear accountability and an execution cadence can help create a more predictable operating model.

• Why CFOs and CIOs are increasingly operating at the intersection of finance, systems, data, and technology.

• How experience and intuition helped Cruz identify a systems problem that AI could eventually detect earlier.

• Why storytelling, authenticity, and soft skills are becoming more important as AI automates traditional finance work.