• MMC

Since the COVID-19 pandemic, international mobility policies have evolved significantly. According to the PwC Global Mobility Survey 2025, nearly 4 out of 10 companies have revised their expatriation strategies. However, few organizations today have reliable indicators to truly measure the success of international assignments.

In this context of transformation, one phenomenon remains largely underestimated: silent failures.

Within organizations, international mobility is still mostly assessed through visible indicators: assignment completion, employee retention, or the absence of early returns. Yet, a significant portion of “less successful” assignments generates no formal warning signals.

For HR departments, these situations represent a major strategic challenge, as they directly impact the return on investment of mobility programs—without being identified as failures.

Assignments That Seem Successful… But Are They Really Performing?

An employee who remains in their international assignment for the planned duration is not necessarily a success indicator. Behind this apparent stability may lie:

• Performance below expectations
• Partial cultural integration
• Adaptation difficulties for the employee or their family
• Objectives only partially achieved
• A return experience that is not fully leveraged

According to SHRM 2025, up to 30% of assignments considered “successful on paper” show signs of disengagement or burnout.

These situations are rarely visible in standard HR reporting, yet they reflect a real loss of value for the organization.

Key Figures to Remember

• 38% of companies lack clear indicators to assess the success of international assignments (EY Global Mobility Reimagined 2025)
• 56% of expatriates feel their return was not sufficiently valued (Mercer 2024)
• 23% leave their company within one year after returning from an assignment (Mercer 2024)

What Are the Main Drivers of Silent Failures?

Insufficient Preparation

The success of an international assignment goes far beyond administrative aspects. Preparation limited to visas, housing, or taxation is not enough.

The lack of intercultural preparation or concrete projection into the host country is a major risk factor.

An Operational-Focused Support Approach

Many companies focus their efforts on administrative management rather than human support:

• Local integration
• Regular follow-up
• Support for the spouse
• Handling adaptation challenges

Yet these dimensions are often decisive for the overall success of an assignment.

Misalignment Between Profile and Assignment

Selection is still largely based on technical criteria. However, success in an international context strongly depends on behavioral competencies:

• Adaptability
• Cultural intelligence
• Ability to manage uncertainty
• Autonomy

A mismatch can lead to a partially successful assignment—without any visible formal failure.

The Family Factor: Still Underestimated

The spouse and children play a central role. Employment challenges for the spouse, schooling issues, or difficulties integrating locally can directly impact the employee’s performance.

What Are the Real Costs for Organizations?

Silent failures generate multiple types of costs:

Financial

• High expatriate compensation packages
• Relocation and installation costs
• Significant HR investment
• Lower-than-expected returns

Organizational

• Increased HR workload
• Difficulty capitalizing on experience
• Frequent mission adjustments

Human

• Employee disengagement
• Adaptation fatigue
• Degraded expatriate experience
• Increased risk of post-assignment turnover

Strategic

Underperforming mobility can slow international development and limit internal skill growth.

Why Do These Failures Remain Invisible?

Several factors explain this blind spot:

• Lack of mobility-specific performance indicators
• Insufficient monitoring during and after assignments
• Difficulty in objectively defining “success”
• Limited feedback culture
• Reluctance to label certain assignments as failures

How Can HR Better Detect and Prevent Silent Failures?

Rethink Candidate Selection

Incorporate soft skills and adaptability alongside technical expertise.

Structure Comprehensive Support

Cover the full mobility lifecycle:

• Before (intercultural and family preparation)
• During (regular follow-ups and feedback)
• After (career support and reintegration)

Involve Families More Actively

Providing support to spouses and families significantly reduces risks.

Implement Relevant KPIs

Beyond traditional indicators, track:

• Employee satisfaction
• Local integration
• Achievement of assignment objectives
• Post-mobility retention
• Quality of reintegration

Leverage Feedback and Lessons Learned

Formalizing assignment reviews helps identify friction points and continuously improve mobility programs.

Conclusion

Silent failures remain a blind spot in international mobility management. Invisible in traditional indicators, they are nonetheless costly and highly impactful for organizations.

For HR teams, the challenge is clear: move from an administrative approach to a more holistic one, focused on employee experience, risk anticipation, and long-term performance tracking.

Beyond operational success, international mobility becomes a true indicator of an organization’s human and cultural maturity.