This story is available exclusively to Insider subscribers. Become an Insider and start reading now. Goldman Sachs is known for long tenures and promoting from within, but Marcus has seen more turnover. In early March, Omer Ismail, Goldman's head of consumer business, departed. These are the 14 people leading Marcus through a year of massive change. For most of its 152-year history, Goldman Sachs was not a household name. Serving the ultra-wealthy and institutional clients, the investment bank flew below the radar for much of Main Street, never putting a logo on its buildings. That all changed in 2008, when the investment bank became a bank holding company in the wake of the financial crisis. The move meant it could deal in deposits and