By Michael S. Derby (Reuters) -A Federal Reserve official’s proposal to overhaul the central bank’s interest rate target system is getting a warm reception but still faces long odds as the Fed's balance sheet wind-down nears conclusion and Fed leadership is due to change next year. Dallas Fed President Lorie Logan, who previously ran the New York Fed's open market operations, last month proposed changing the interest rate targeted by the Fed from the federal funds rate, the focus of monetary policy for d ...