Mergers and acquisitions, though powerful tools for growth, often fall short of expectations. One reason is a lack of focus on the integration experience of acquired employees. While companies tend to invest heavily in pre-deal due diligence, they frequently overlook the day-to-day realities faced by incoming employees—who often feel undervalued, unsupported, and overwhelmed—ultimately threatening deal success, long-term productivity, and retention. These challenges are preventable through planning that includes culture assessments, employee journey mapping, empowering mid-level leaders, and remaining flexible during integration, all of which help foster buy-in and preserve deal value.