Anyone interested in the world’s most thankless job? It pays well: Edward M. Liddy, the chairman and CEO of AIG, announced today that he will step down once the board of directors finds replacements for those jobs. Liddy recommended earlier this week that the chairman and CEO be separated. He took over the job in September 2008 in order to try to rescue the company from the mess it had created for itself (and many, many others). The company also nominated six new directors to its board, who will stand for election at the end of June.