THE BANGLADESH ARMY has replaced three senior officers loyal to ousted President Hussain Muhammad Ershad, and mayors appointed by the former president also will be replaced, sources said. . . . JOSE BLANDON, a political opponent of Manuel Noriega who helped U.S. drug agents decipher tapes of the former dictator's phone calls from jail, denies he leaked the tapes to CNN. . . . THE NEW YORK Daily News and nine unions striking the newspaper have agreed to meet with a federal mediator in Washington, D.C., in a last-ditch attempt to reach a settlement to the bitter labor dispute.