Citi's wealth unit has seen at least 11 senior execs exit since Merrill Lynch veteran Sieg joined in September. The latest departure is David Bailin, chief investment officer for the global wealth division, who announced his departure on Monday. Sieg's mandate is to turn around the wealth business, which was barely profitable this past quarter. Sieg also plans to expand Citi's already successful wealth business in Asia. At least two other senior Asia executives have left.

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Persons: Andy Sieg, Merrill Lynch, Sieg, David Bailin, Bailin, Fraser, Andy, Mark Mason, Shyam Sambamurthy, Merril Lynch, Don Plaus, Hale Behzadi, Citi David, Eduardo Martinez Campos, Keith Lee Hong, Fernando Lopez Munoz, Luigi Pigorni, Jeff Sutton, Eduardo, Seamus Yin, Hayley Cuccinello Organizations: Citi, Business, Bankers, Citi Wealth, Citi Global Wealth, North America, Eduardo Martinez Campos Head, Mark, Mark Mills Regional, Fernando Lopez Munoz Head, Jeff Sutton Global, Eduardo Ventura, West Locations: Asia, Hong Kong, Singapore, Keith Lee Hong Kong, Mark Mills, Shyam Sambamurthy South Asia, America, West China, hcuccinello@businessinsider.com