South Sudan’s president has fired the country’s chief banker as the new nation’s currency continues to slide against the U.S. dollar. Elijah Malok lost his job about a month after launching the South Sudanese pound. He will be replaced by his deputy, Kornelio Koryom Mayiik. South Sudan declared independence on July 9. The country faces a host of security and development challenges as it battles for stability. The president, Salva Kir, has yet to name a cabinet.