If you’ve ever walked into a portfolio company three months after close and thought, “This isn’t what we signed up for,” you’re not alone. On paper, the numbers worked. The market checked out. The diligence binder was airtight. Yet value still leaked, not from the spreadsheet, but from the people charged with delivering the thesis. Misalignment at the top shows up fast. Leaders who nodded in diligence stall in real decisions. A CEO with a reserved derailer clamps down in meetings, leaving the team second-guessing. A head of sales drives results but erodes trust in the process. What looks like “style” in diligence can spiral into churn, rework, and talent flight by the first operating review.

Why the traditional process misses it

This isn’t mysterious, it’s under-measured. Traditional diligence privileges what can be modeled: financials, legal risk, market proof. But the “human system” that will actually execute the plan requires different instruments and a faster read. References are curated. Surveys are generic. Without a focused audit, sponsors inherit execution risk they never priced. The financial impact is measurable. Research shows dysfunctional leadership teams can cost 10–15% in financial performance and 25–30% in valuation (HBR). Indirect costs compound: delays, missed opportunities, and an organization stretched thin by unclear signals at the top.

What to audit before close

  1. Leadership alignment to the thesis. Assess decision style, risk appetite, and time horizon against the investment plan. Spot the silent veto points before they surface in the boardroom.2. Executive style. Use validated assessments to understand how leaders will behave under pressure and as a team.3. Culture fit for value creation. Look at how work actually gets done. Does this culture reinforce speed, accountability, and collaboration? Or will it fight or quietly stall for the first 90 days of the value plan?

Our point of view

Most sponsors run Quality of Earnings (QoE). We add what we call Quality of Execution (QoX). In diligence or immediately post-close, we bring a science-based lens to the executive team: leadership assessments, team effectiveness sessions, leadership advisory services, and culture scans that turn subjective “style” questions into objective data. The outcome: a clear read on whether the team can carry the thesis, and what to shore up if not.If you wouldn’t close without a QoE, don’t close without a QoX.

About the author : Lydia Rominger, M.S.