If you are an Operating Partner at a PE firm in 2026, you are likely staring at a deal funnel that is moving faster than your ability to vet it. The market has shifted. According to Bain & Company’s Global Private Equity Report 2025, buyout multiples have stabilized at a record 11.9x EBITDA in North America. You are paying a premium for assets that look pristine on a spreadsheet but often harbor catastrophic operational rot beneath the surface.
The era of financial engineering is over. You cannot arbitrage your way to a 3x MOIC when interest rates are hovering at 5% and multiple expansion is virtually non-existent. The only lever left is operational engineering—actually fixing the business to drive margin expansion.
Here is the problem: Traditional due diligence is designed for risk mitigation, not value creation. It tells you if the company is being sued, if the tax returns match the bank statements, and if the IP is registered. It does not tell you if the VP of Engineering is hoarding code, if the sales forecast is 80% hope, or if the "proprietary AI platform" is actually three interns and a spreadsheet.
Recent data is alarming. Studies indicate that between 70% and 90% of M&A deals fail to meet their intended objectives, primarily due to inadequate operational and cultural assessment. We see this constantly: a firm acquires a SaaS platform projecting 40% growth, only to discover on Day 30 that technical debt will require a complete platform rewrite, burning 18 months of runway.
You don't need another month of diligence. You need the truth in five days.

At Human Renaissance, we deployed this framework to triage distressed assets, but it has become our most potent weapon for pre-LOI diligence. It is not about writing a report; it is about validating the investment thesis. If the deal is broken, you need to know by Wednesday, not next month.
This framework assumes you have data room access and key stakeholder interviews scheduled.
Financial diligence checks the past; operational diligence checks the future. On Day 1, we ignore the P&L and look at the texture of revenue.
Related Reading: The Revenue Quality Audit: What PE Firms Check Before Writing a Check
This is where 40% of deal value evaporates. McKinsey’s 2025 analysis suggests that 31% of acquired codebases are riddled with critical technical debt, posing a direct threat to valuation. We don't need a code audit yet; we need a velocity audit.
Related Reading: Stop Buying Broken Code: How to Quantify Technical Debt in Due Diligence
We map the organization not by title, but by output. In founder-led businesses, you often find "Title Inflation"—a VP of Sales who is really a glorified account manager.
Can this company scale 2x without adding 2x headcount? If the answer is no, your margin expansion thesis is dead.
We do not produce a 100-page deck. We produce a 3-page memo with three sections:
The market in 2026 rewards velocity. Sellers are exhausted by 90-day diligence cycles that result in re-trading. By executing a 5-day operational assessment, you signal to the seller that you are serious, operator-led, and decisive.
However, the real value is internal. It prevents the most common PE failure mode: The 6-Month Discovery Period.
Too many firms buy a company and spend the first two quarters "figuring out what they bought." By the time they realize the CTO is incompetent and the churn numbers were massaged, the first year of the hold period is gone. You cannot get that IRR back. The 5-Day Assessment ensures that your 100-Day Plan is ready before the wire hits.
You speak fluent EBITDA, but do you speak fluent DevOps? Do you know if the "AI Roadmap" is real? If you cannot bridge that gap, you are betting on luck.
When you acquire a firm, you are buying a machine. Financial diligence tells you how much fuel the machine used last year. Operational diligence tells you if the engine is about to explode.
Don't buy the explosion. Audit the engine.
Related Reading: The PE Operator's Playbook for 100-Day Portfolio Turnarounds
