The U.S. Federal Deposit Insurance Corp (FDIC) is challenging positive conclusions given to Citigroup Inc.'s (C) management in a government-requisitioned review. Some FDIC officials are suspicious about the report, following the interviews of Citi's management who rated the effectiveness of their colleagues. Uncertainty surrounding the integrity of the report may lead the FDIC to assign the report little weight during the next regulatory assessment of the company’s management. The review was conducted this summer for Citi's board by recruiting and consulting firm Egon Zehnder International. It was triggered by the government's stress tests on top banks. Companies found to be in need of additional capital were required to conduct assessments of their management and report the findings to federal regulators. The FDIC, which had concerns about the qualifications of Chief Executive Vikram Pandit and his top management team, required Citigroup to hire an outside firm ...