Inside Citigroup News Today

Since her 20s, Wechter has served as a sounding board to Chairmen Richard Parsons and Mike O'Neill and CEOs Michael Corbat and now Jane Fraser. Wechter, 41, eventually took over the human resources department, where she has set in motion changes reshaping life at the bank for its 238,000 employees.

Citigroup plans to offer automatic-sweep products seven days a week as banks respond to clients' demands for higher interest rates on deposits and faster access to their cash.