Citigroup (C) plans to cut 4% of its global staff, or about 11,000 jobs in an effort to save as much as $1.1 billion a year. It's the first major changes announced since the board forced out CEO Vikram Pandit in October. "While we are committed to -- and our strategy continues to leverage -- our unparalleled global network and footprint, we have identified areas and products where our scale does not provide for meaningful returns," new CEO Michael