In May 2023, Allen & Overy and Shearman & Sterling announced their merger, with Wim Dejonghe identifying three key factors for credibility: top-tier market work, local capabilities, and a blend of U.S. and English law expertise. While the merged firm exceeded its revenue projections in the first fiscal year, it reported flat profits and struggled to retain U.S. partners due to cultural clashes and uncertainty about the merger’s benefits. The merger’s success depends on whether clients and partners embrace the vision of providing comprehensive support for complex global issues, as ongoing departures from legacy Allen & Overy and new arrivals from Shearman have complicated the unification of U.S. offices.