The FDNY's first chief diversity and inclusion officer is leaving the post after less than a year on the job, the FDNY said Thursday. Pamela Lassiter was sworn in Jan. 30. Sources said that Lassiter's departure came as a surprise. "Here we have someone who is academically qualified. She's a black, female . . . Then, suddenly - bam, she's gone," one fire official said. The position was created after a judge ruled that the FDNY's entrance exam was biased against minorities. Commissioner Daniel Nigro, in a statement on Lassiter's exit, stressed the FDNY's progress in improving that record.