Why M&A Success Is Ultimately a Talent Challenge

The financial rationale behind a merger or acquisition is often clear long before a deal closes. Yet many transactions fail to deliver their expected value. Evan Berta, an associate at Hunt Scanlon Ventures, examines new insights from Spencer Stuart and explores why leadership, talent, and organizational execution have become some of the most important drivers of M&A success.

In its latest market intelligence findings, The Role of HR in M&A: 5 Golden Rules for CHROs, Spencer Stuart argues that many transactions fail not because of flawed strategy, but because of shortcomings in leadership, culture, talent retention, and organizational execution.

While financial and operational diligence often dominate deal planning, the firm’s research suggests that people-related decisions frequently determine whether value is ultimately created or destroyed.

That perspective is becoming increasingly relevant as acquisitions are used less to acquire scale and more to secure capabilities, technology, and specialized expertise. In these transactions, leadership continuity, workforce stability, and organizational alignment are often as important as the financial assumptions underpinning the deal itself.

Most acquisitions begin with a compelling strategic vision. Companies pursue transactions to enter new markets, acquire capabilities, create scale, or accelerate growth. Yet despite extensive financial modeling and diligence, many deals fail to achieve their intended outcomes.

The Hidden Risks Often Sit Within the Workforce

One of Spencer Stuart’s central observations is that many organizations underestimate the complexity of HR due diligence. While buyers carefully evaluate financial statements and operating metrics, critical workforce issues can remain hidden until after a transaction closes.

Those risks extend beyond traditional liabilities such as pension obligations, compensation structures, and employee agreements. They also include leadership gaps, succession concerns, retention risks, and capability shortfalls that can directly impact execution.

“The most significant risks in a transaction are often not found on a balance sheet,” said Evan Berta, an associate at Hunt Scanlon Ventures. “Leadership continuity, institutional knowledge, and the ability to retain critical talent frequently determine whether an investment thesis becomes reality.”

“The most significant risks in a transaction are often not found on a balance sheet.”

These issues become particularly important in transactions involving specialized expertise, advisory businesses, technology firms, and other knowledge-intensive organizations where value creation depends heavily on people.

Retention Is a Value-Creation Strategy

Spencer Stuart also highlights a reality that many acquirers learn quickly: employees experience a transaction very differently than investors or executives.

While leadership teams focus on strategic objectives, employees often focus on uncertainty. Questions around reporting structures, career paths, compensation, culture, and job security can quickly create distraction and anxiety.

This is where communication becomes critical.

Research cited by Spencer Stuart shows a significant disconnect between leadership perception and employee experience. While 80 percent of leaders believe communication during periods of change is effective, only 53 percent of employees agree.

“The retention challenge begins long before a deal closes,” said Mr. Berta. “Employees make decisions based on trust, visibility, and confidence in future leadership. Organizations that communicate clearly and consistently are often better positioned to preserve critical talent through periods of disruption.”

For many organizations, retaining key employees may ultimately prove more important than achieving projected cost synergies.

Organization Design Determines Execution

Beyond retention, transactions frequently require organizations to make difficult decisions about leadership structures, reporting relationships, and future operating models.

Every deal creates questions around overlap, accountability, and decision-making. Which leaders are best positioned to lead the combined organization? Which capabilities need to be preserved? Where should resources be concentrated to support the deal thesis?

Spencer Stuart notes that integration challenges account for the majority of failed transactions. This reinforces the growing importance of organizational design as a strategic discipline rather than an administrative exercise.

“Successful acquirers approach organization design as part of the value creation plan itself,” said Mr. Berta. “The structure, leadership team, and talent strategy must all align with the reason the transaction was pursued in the first place.”

This is especially true in acquisitions centered around capability building, where preserving culture and expertise may be more valuable than generating short-term efficiencies.

The Fundamentals Matter More Than Leaders Think

While strategy, leadership, and culture often dominate integration discussions, Spencer Stuart points out that employees frequently judge a transaction through much simpler experiences. Can they access the systems they need to do their jobs? Will payroll function properly? Do they understand their benefits and know where to find information? These operational details may seem minor compared to broader strategic objectives, but they often shape employee confidence during the earliest stages of integration.

“Successful acquirers approach organization design as part of the value creation plan itself. The structure, leadership team, and talent strategy must all align with the reason the transaction was pursued in the first place.”

Strong execution therefore requires balancing transformational goals with operational discipline. Organizations that overlook these fundamentals can unintentionally create uncertainty that fuels disengagement, undermines trust, and ultimately accelerates unwanted turnover during a period when retaining talent is often one of the most important determinants of deal success.

This reads much more naturally, keeps the questions, and avoids the choppy one-line formatting. It also feels more like a Fortune or HBR article than a blog post.

The Shift Ahead

As transactions increasingly focus on acquiring talent, capabilities, and intellectual capital rather than physical assets, the role of HR is becoming more strategic.

The most effective CHROs are no longer simply supporting transactions. They are helping shape them. From due diligence and leadership assessment to succession planning, retention strategy, and organizational design, human capital decisions are increasingly influencing deal outcomes.

For boards, investors, and executive teams, the implications are becoming difficult to ignore. Deals rarely succeed because the spreadsheet was right. They succeed because the organization can execute the vision behind it.