$1.4 Trillion of M&A Value Evaporates: What Midmarket Leaders can do to Avoid Becoming a Statistic

Global M&A deal value hit $4.8 trillion in 2025. Even by conservative estimates, at least 30% of that value will fail to deliver on the synergies and growth that justified the transaction. That’s $1.4 trillion at risk in a single year. Not a rounding error. The GDP of a G20 nation, evaporating in boardrooms and spreadsheets while the participants congratulate themselves on closing the deal.

The M&A industry has a story it likes to tell about itself: that it’s getting better. Twenty years ago, roughly 70% of deals failed to deliver on their promises. Today, Bain & Company reports that number has inverted, with close to 70% of mergers now succeeding. Acquirers got smarter. Due diligence got deeper. Integration playbooks got better. The professionals who study this for a living point to dedicated M&A teams, cultural assessments conducted before signing, and the compounding benefits of doing deals frequently enough to build institutional muscle.

There’s truth in that narrative.

But it comes with an asterisk the size of a balance sheet.

The improvement belongs to a specific cohort: large-cap, serial acquirers with full-time M&A specialists, dedicated integration functions, and the deal volume to justify both. Companies doing at least one acquisition per year now generate total shareholder returns roughly double those of companies that rarely or never transact. The experience curve is real, and the firms riding it are capturing disproportionate value.

The rest of the market hasn’t caught up.

In the lower middle market, deal teams are thinner, management benches are shallower, and reporting infrastructure is weaker. These businesses are still pulling together ad hoc teams of relatively inexperienced people to handle due diligence and post-merger integration. They haven’t built repeatable models. And the gap between them and the sophisticated acquirers is widening. Bain’s own researchers confirmed it: the vast majority of companies are not frequent acquirers and are just starting on this journey.

The $1.4 trillion figure isn’t a problem that belongs to any one party. It’s a systemic failure that runs through every layer of the M&A ecosystem: the sponsors who underwrite the deal, the boards that govern the asset, the management teams that operate the business, and the advisors who bless the thesis. Everyone contributes. Everyone looks away.

These failures are not abstract.

As of early 2025, general partners were sitting on a backlog of 29,000 unsold companies globally. The median holding period had stretched to 5.6 years, the highest since tracking began. Distributions as a proportion of net asset value had fallen to 11%, the lowest in a decade, down from an average of 29% between 2014 and 2017. LP contributions had equalled or outweighed fund distributions in five of the previous six years. Capital isn’t returning because the underlying businesses aren’t performing.

The conventional explanation is market conditions: elevated interest rates, valuation gaps between buyers and sellers, regulatory friction. Those are real headwinds. But they don’t explain why 29,000 companies are stuck. If the operating playbooks were working, these businesses would be ready for exit. They’re not. The problem isn’t the deal environment. The problem is what’s inside the building.

The Three Failures Nobody Wants to Talk About

Most post-mortem analysis of failed M&A focuses on integration mechanics: systems weren’t merged properly, cultures clashed, leadership wasn’t aligned. These are real problems.

But they’re symptoms, not root causes.

The root causes are quieter and more uncomfortable.

They’re pre-existing conditions that live inside the business long before a deal closes, and they persist through ownership changes because nobody is incentivized to surface them. We see them repeatedly, across industries and deal sizes, and they fall into three categories:

Technology debt.

Underinvestment in talent.

And the absence of what we’ll call an operational loop.

These aren’t integration failures. They’re operating failures.

And no playbook fixes an operating system that was broken before the deal started.

1. Technology Debt: The 40% Tax on Everything

Every business runs on technology. The question is whether the technology is running the business or the business is running from the technology.

McKinsey’s research puts the scale of the problem in stark terms: technical debt accounts for up to 40% of IT balance sheets across sectors. Companies are paying an additional 10 to 20 percent on top of every new project just to work around the accumulated mess of legacy systems, deferred maintenance, and custom workarounds that should have been retired years ago. Roughly a third of CIOs report that more than 20% of their budget earmarked for new products gets redirected to resolving tech debt issues instead.

In the lower middle market, the problem is worse because it’s invisible. These businesses don’t have CIOs conducting tech debt audits. They have a head of IT who inherited a stack from the previous head of IT, who inherited it from the founder’s nephew who set up the original systems. The debt compounds silently. Each workaround adds friction. Each patch delays the reckoning.

We’ve worked with businesses where the core operational platform was selected by a single person, without stakeholder input, years before the current leadership team arrived. The tool was implemented, briefly configured, and then never optimized. No one owned ongoing improvement. No one measured adoption. When the business outgrew the platform’s capabilities, the response wasn’t to evaluate alternatives. It was to bolt on supplementary tools, creating a fragmented stack where data lives in silos and no one has a unified view of operations.

This pattern repeats across critical technologies like CRM, ERPs, MRPs, marketing automation, financial reporting, and analytics. Tools are procured without cross-functional input. They’re implemented without change management. They’re abandoned without anyone formally acknowledging how or why they failed.

When budgets tighten, these “underperforming” tools become the first line item cut, replaced by cheaper alternatives that reset the adoption clock to zero and crater employee confidence in the organization’s ability to make technology decisions.

The compounding effect on acquisitions is severe.

When a sponsor acquires a business running on duct tape and workarounds, the synergy model assumes a level of operational capability that doesn’t exist. Revenue synergies require integrated data to identify cross-sell opportunities.

Cost synergies require system consolidation. Both require a technology foundation that can absorb change.

McKinsey’s merger database found that nearly 70% of deals failed to achieve expected revenue synergies. A meaningful share of those failures trace directly to technology infrastructure that couldn’t support the integration the deal thesis assumed. Whether the real number is 30% or 70%, the dollar impact sits in the billions. Investors are haemorrhaging returns because operators have lost sight of the ball.

2. Talent Underinvestment: Hiring Without Enabling

Acquiring a company means acquiring its people. In theory, everyone knows this. In practice, talent gets the due diligence equivalent of a cursory LinkedIn scan and a handshake.

The data on what happens next is unforgiving.

Research from MIT Sloan found that acquired workers leave at nearly three times the rate of regular hires in the first year post-acquisition. EY research cited by Gallup puts it more bluntly: 47% of key employees leave within the first year of a transaction, and 75% leave within three years. This isn’t attrition. It’s an evacuation.

And it starts before the ink dries. The announcement itself triggers the flight. Employees start updating resumes the day the deal is leaked to the press. The best people, the ones with options, leave first. What remains is a workforce that is either too loyal to leave, too specialized to find an equivalent role elsewhere, or too disengaged to care. None of those are the foundation you want for a transformation.

The conventional response is retention bonuses: financial incentives to keep key people through the transition. These work temporarily and expensively. What they don’t address is the deeper problem: most of these organizations weren’t investing in their people before the acquisition, and they don’t start after.

Gallup’s research across more than 112,000 teams and 2.7 million employees found that top-quartile business units in employee engagement achieve 23% higher profitability and significantly higher productivity than bottom-quartile units. Employees with access to development opportunities are 3.6 times more likely to be engaged. The implication is clear: engagement isn’t a soft metric. It’s a profitability driver. And most mid-market businesses are running in the bottom quartile because they’ve never invested in the infrastructure that drives engagement: structured onboarding, ongoing development, documentation, clear career pathways, and the technology to enable all of it.

We’ve seen this manifest in a specific, repeatable way. A business will recruit competitively for a senior role, bring someone in with strong credentials, and then drop them into an environment with no documented processes, no standardized onboarding, and tools that require institutional knowledge to operate. Within six months, the new hire is either performing below their capability because the environment won’t let them execute, or they’ve left for an organization that will. The business then blames the hire, not the system, and repeats the cycle.

When Frontier Communications faced a pending Verizon acquisition, they took the opposite approach. They launched a structured company-wide program focused on upskilling, internal mobility, and engagement. The results: a 32% year-over-year increase in learning hours, $1.25 million in reduced talent costs by replacing contractors with internal gig assignments, and a 98% opt-in rate in the division where senior leadership personally championed the program.

The difference wasn’t budget. It was intention.

The lesson is not complicated: you cannot extract value from people you haven’t invested in. Retention bonuses are a tourniquet.

Development infrastructure is the cure.

3. Operational Stagnation: The Missing Operational Loop

There’s a function that exists in high-performing organizations that is almost entirely absent in the majority of lower middle market businesses. It doesn’t have a standard title or a dedicated budget line. It’s not a consulting engagement and it’s not a design sprint.

It’s an embedded, continuous practice of asking one question: how do we get better?

We call it the operational loop.

Most organizations we encounter don’t have one. For Foes, it’s actually embedded in our core operating model.

What the majority of businesses have instead is an execution layer.

The team shows up, does the work, ships the product, closes the quarter. The processes that enabled last year’s performance are assumed to be adequate for this year’s targets. When those processes start to strain, the response is to work harder, not to examine whether the system itself needs to change. People get faster at doing the wrong things. Efficiency and effectiveness diverge. And nobody notices until the gap becomes a crisis.

PwC’s 2024 Pulse Survey found that 76% of business executives believe the average company in their industry will cease to exist within a decade unless it fundamentally changes its business model. That’s not consultants trying to sell transformation projects. That’s operators acknowledging that the way they’re running their businesses has an expiration date.

And yet, the operational loop remains absent. Alvarez & Marsal’s 2025 analysis of the PE landscape named the problem directly: firms have kept underperforming portfolio companies on life support for too long, waiting for market conditions to improve instead of demanding operational accountability. Performance improvement programs exist on paper but haven’t been implemented.

The plans are there.

The execution isn’t.

McKinsey’s research on merger synergies adds a temporal dimension that makes this worse: unless synergies are captured within the first full budget year after consolidation, they tend to be overtaken by subsequent events and fail to materialize entirely. The window for operational improvement is narrow. An organization without a pre-existing operational loop misses it because there’s no one whose job it is to identify the opportunity, no process to evaluate it, and no accountability structure to ensure it gets done.

This is not a resource problem. It’s a priority problem.

The businesses that stagnate operationally aren’t short on people or budget. They’re short on the discipline to stop, examine their own operating model, and ask whether the way they’ve always done it is the way they should keep doing it. Innovation, in this context, doesn’t mean R&D labs or hackathons.

It means a standing commitment to operational self-examination: inspecting processes, questioning assumptions, measuring adoption, and acting on what the data reveals.

We’ve worked with businesses where the answer to “when did you last evaluate whether your go-to-market process is working?” was a blank stare. Not because the question was unfamiliar, but because nobody in the organization owned it. Sales owned pipeline. Marketing owned campaigns. Operations owned fulfillment. Nobody owned the question of whether those functions were working together effectively, or whether the way they were structured still made sense given where the business was headed.

That’s the gap. And in a post-acquisition environment, where everything needs to change and the clock is ticking, it’s the gap that kills the deal thesis.

The Flywheel in Reverse

These three failures don’t exist in isolation.

They compound.

Technology debt makes talent harder to retain. People leave organizations that can’t enable them. A senior hire who spends their first ninety days fighting a CRM that doesn’t work and pulling reports from three disconnected systems isn’t going to stay long enough to fix the problem they were hired to solve.

Talent gaps make operational improvement impossible. Even when the need is recognized, there’s nobody with the bandwidth, the mandate, or the institutional capital to drive the change. The people who could build the operational loop are the same people who are either burnt out or have lost the motivation to solve problems that management has ignored for the duration of their tenure.

Operational stagnation makes technology investments fail. Without a loop that evaluates adoption, measures outcomes, and iterates on implementation, new tools follow the same trajectory as the old ones: procured with optimism, configured halfway, and abandoned within eighteen months. In the most simple terms, if an organization can’t measure it, you can’t track the impact of those decisions, good or bad.

The budget gets spent.

The problem gets worse.

This is the flywheel that runs in reverse. Each failure feeds the next. Each compounds the cost. The entire cycle is invisible to anyone who isn’t operating inside the business day to day, because the people reporting to the board are the same people trapped in the cycle. They don’t have the vantage point to see it, and in many cases, they don’t have the incentive or resources to fix it.

The Board in the Dark

Which brings us to the structural failure that sits above all three: the information asymmetry between the people governing the business and the reality of how that business actually operates.

In the lower middle market, boards make decisions based on what management tells them. That’s not a criticism of management’s integrity. It’s a statement about infrastructure. These organizations typically lack the reporting systems, the data hygiene, and the operational dashboards that would give a board an independent view of what’s happening inside the business. The board gets a P&L, a verbal update from the CEO, and a set of assumptions. They’re governing organisations like it’s 1996.

When HBR studied a public company that acquired a complementary business expecting cross-sell synergies, the board and all five directors identified integration as their top priority. They were anxious, invested, and focused. But when the researcher interviewed the company’s actual clients, the response was indifference. Clients couldn’t see the value in the combined offering. The board’s thesis was built on an assumption that nobody had tested against reality. The acquisition was eventually unwound. The share price fell to less than a tenth of its float value.

That case is extreme but the pattern is common. Boards operate on conviction, not evidence, because they don’t have the infrastructure to generate evidence. The information they receive is filtered through management teams that are under pressure to present progress, not problems. The result is a governance layer that approves deal theses, growth plans, and synergy targets without the operational visibility to know whether any of it is achievable.

This is where the $1.4 trillion actually disappears.

Not in the deal itself, but in the months and years after, when an under-instrumented board approves an integration plan built on assumptions that nobody inside the building has the tools or the incentive to challenge.

The Real Problem Isn’t Integration. It’s the Operating System.

The M&A industry has spent twenty years refining how deals get done. Better diligence. Faster closes. Smarter structuring. And the success rate, for the firms that have invested in these capabilities, has improved.

However, many of the conversations have been focused on the wrong layer. The deal is the transaction. The value lives in the operation. And the operation, in most lower middle market businesses, is running on a foundation of accumulated technology debt, talent that’s been hired but not enabled, and processes that haven’t been examined since they were first put in place.

Synergies don’t fail because the integration playbook was wrong. They fail because they’re being layered onto an operating system that can’t support them. You cannot consolidate systems that were never properly implemented. You cannot cross-sell through teams that don’t have a unified view of the customer. You cannot drive operational improvement in an organization that has never built the muscle to improve itself.

The fix is not another playbook. It’s not better due diligence, although that would help.

It’s an operating partner embedded inside the business, with the proximity to see what the board can’t see and the mandate to fix what management doesn’t have the capacity to fix on their own.

How We Fix It

With many of our clients we have found success by operating as embedded fractional partners inside their businesses. We don’t advise from the outside. We operate from the inside: attending the meetings, building the systems, and driving outcomes alongside the team.

Our model follows a deliberate progression. We start by diagnosing the problem across every operational surface, not just the one where the pain is most visible. We then build the systems, processes, and infrastructure the business needs to actually execute. And we stay, operating as part of the leadership team, to ensure what we build gets adopted, measured, and improved continuously.

That last part is the operational loop. It’s the piece that most advisory relationships skip entirely and that most businesses never build on their own. It’s the difference between a plan that sits in a drawer and a system that compounds value over time.

The three failures in this piece are not theoretical. We see them in many of the assignments we have won and lost with potential clients.

We’ve fixed the challenges we identified, not by handing the client a report, but by getting inside the building and doing the work.

If the businesses in your portfolio are stuck, if the synergies aren’t materializing, if the operating plan looks right on paper but the results aren’t following, the problem is the operating system underneath it.

If you’re keen to understand how we can fix it for an organisation you operate or own, feel free to give us a shout.