The Financial Advice Most CFOs Get Wrong
Conventional financial wisdom sounds smart until you examine it closely. Many "best practices" in finance are context-dependent rules that get applied universally—sometimes with disastrous results. Here are the common pieces of advice that deserve more scrutiny.

Minimize Cash
Excess cash has strategic value for opportunities and resilience
Maximize Leverage
Debt amplifies both good and bad outcomes—optimize for durability
Growth at All Costs
Unprofitable growth destroys value—grow profitably instead
Hit the Budget
Budgets are planning tools, not scorecards—adapt when conditions change
Key Takeaways
- •Best practices are context-dependent—what works for large companies may not work for growing ones
- •Cash optimization taken too far creates fragility
- •Growth for growth's sake destroys more value than it creates
- •The goal is building a sustainable business, not hitting arbitrary benchmarks
Finance has its orthodoxies—rules repeated so often they become unquestioned truths. Minimize cash on the balance sheet. Maximize leverage for tax efficiency. Grow revenue at all costs. Cut costs to improve margins. These principles aren't wrong, but they're not always right either.
The best CFOs know when to follow conventional wisdom and when to ignore it. The worst CFOs apply "best practices" mechanically without considering context. Here are the common pieces of advice that cause the most damage when misapplied.
"Minimize Cash on the Balance Sheet"
The textbook says excess cash earns poor returns. Put it to work—buy back shares, pay dividends, make acquisitions, invest in growth. Cash sitting in a bank account is "lazy" capital.
Why This Advice Is Dangerous
- Optionality has value: Cash lets you act on opportunities and survive disruptions. That optionality is worth something.
- Credit can disappear: When you need cash most, credit becomes unavailable. Ask anyone who ran lean into 2008 or 2020.
- Stress costs money: Companies operating without cash buffers make desperate decisions—bad acquisitions, fire-sale asset sales, unfavorable debt terms.
- Growth requires investment: The best time to invest is often when others can't. Cash lets you be opportunistic.
The Better Principle
Hold enough cash to survive a reasonable downside scenario without external financing. For most private businesses, that's 3-6 months of operating expenses plus some strategic reserve. "Excess" cash beyond that can be deployed, but the definition of "excess" should be conservative.
"Maximize Leverage for Tax Efficiency"
Interest is tax-deductible. Therefore, financing with debt is cheaper than equity. Maximize your debt-to-equity ratio to minimize your tax bill and maximize returns to equity holders.
Why This Advice Is Dangerous
- Leverage amplifies everything: Good times are better, but bad times are catastrophic. One bad year can wipe you out.
- Covenants constrain operations: Debt comes with restrictions that limit flexibility when you need it most.
- Refinancing risk is real: Debt matures. If you can't refinance, you have a problem regardless of your operating performance.
- The tax benefit is limited: For pass-through entities (most private companies), the tax math is different than textbook corporate finance assumes.
The Leverage Trap
The optimal debt level from an academic finance perspective is often higher than the optimal level for a business owner who wants to sleep at night and stay in business for decades. Private company owners should optimize for durability, not theoretical tax efficiency.
"Revenue Growth Is the Top Priority"
Growth solves all problems. Grow revenue and everything else follows—you'll gain market share, achieve economies of scale, and create enterprise value. Focus on the top line and the bottom line will take care of itself.
Why This Advice Is Dangerous
- Unprofitable growth destroys value: Growing revenue at negative margins just makes your losses bigger.
- Growth consumes cash: Working capital requirements increase with revenue. Fast growth without adequate capital creates cash crises.
- Scale doesn't always help: Many businesses don't have meaningful economies of scale. Getting bigger just means more complexity.
- Market share isn't always valuable: Being the biggest player in a bad market doesn't make you successful.
The Better Principle
Grow profitably. A business that grows 15% annually with 20% margins is worth more than one growing 30% with 5% margins. Unit economics matter more than revenue growth rate. Prove you can make money, then scale what works.
"Cut Costs to Improve Margins"
Margins are too low? Cut expenses. Reduce headcount, renegotiate contracts, eliminate programs. Cost cutting is the fastest path to improved profitability.
Why This Advice Is Dangerous
- Cutting the wrong costs destroys value: Reducing sales capacity, customer service, or product quality often costs more revenue than it saves in expenses.
- Cost cutting has limits: You can only cut so much. Eventually you've eliminated all the fat and start cutting muscle.
- It signals distress: Aggressive cost cutting tells employees, customers, and vendors that something is wrong. Talented people leave first.
- It ignores the revenue side: Sometimes the problem isn't costs—it's pricing, product-market fit, or sales effectiveness.
The Margin Math
If your gross margin is 30%, every dollar of cost you cut saves $1. But every dollar of price increase on the same volume also adds $1 to gross profit—without losing any capability. And every dollar of volume increase at the same margin adds $0.30 of gross profit while building scale.
Cost cutting is one tool. It's rarely the only tool, and often not the best one.
"Hit the Budget at All Costs"
The budget is a commitment. Meeting budget demonstrates discipline and predictability. Miss budget and you've failed; beat budget and you've succeeded.
Why This Advice Is Dangerous
- Budgets become games: Managers sandbag targets, hoard resources, and make decisions based on budget timing rather than business sense.
- Year-end heroics destroy value: The push to hit annual numbers leads to bad decisions—pulling forward revenue, deferring necessary expenses, cutting corners.
- Conditions change: A budget set 12 months ago may be irrelevant. Sticking to an outdated plan isn't discipline—it's stubbornness.
- Process trumps outcomes: Hitting budget while missing obvious opportunities or threats isn't success.
The Better Principle
Budgets are tools for planning and communication, not scorecards. When conditions change, adjust the forecast and communicate why. Better to miss an outdated budget while doing the right thing than to hit it through short-term manipulation.
"Benchmark Everything Against Industry Averages"
Compare your metrics to industry benchmarks. If you're below average, improve. If you're above, you're doing well. Benchmarking provides objective standards for performance.
Why This Advice Is Dangerous
- Averages include failures: The average includes companies that went bankrupt. Is "average" really your goal?
- Your strategy may differ: If you're pursuing a premium strategy, average margins would indicate failure. If you're competing on volume, average might be too high.
- Comparisons are often flawed: Industry categories are broad. Your actual competitors may have different profiles than the "industry average."
- Convergence to mediocrity: If everyone targets average, everyone becomes average. The best companies differentiate.
Better Benchmarking
Benchmark against yourself (are you improving?) and against the specific competitors you're trying to beat. Use industry data to spot anomalies that deserve investigation—not as targets to hit.
The Common Thread
Most bad financial advice shares a common flaw: it takes a principle that's true in some contexts and applies it universally. Finance textbooks are written for large public companies with access to capital markets. Private companies with concentrated ownership have different constraints and objectives.
The best financial leaders understand context. They know when to follow conventional wisdom and when to deviate. They optimize for long-term business health, not short-term metric improvement. And they're humble enough to recognize that "best practices" are often just "common practices"—and common isn't always best.
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Eagle Rock CFO provides financial strategy tailored to your specific situation—not generic best practices. We help you make decisions that build long-term value, even when that means challenging conventional wisdom.
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