Credit Suisse has lost one of its key dealmakers in Europe as a talent exodus which started in the United States spreads to Europe, two sources familiar with the move told Reuters. Armando Rubio-Alvarez, who heads the Swiss bank's financial institutions (FIG) franchise in Europe, the Middle East and Africa, is moving to Jefferies where he will take on European responsibilities leading the coverage of some of the region's biggest financial clients, the sources said.