The Labor Department is expected to release December unemployment numbers this morning. And there are rumors the president may also announce a new chief economic adviser to replace Lawrence Summers. Unemployment is likely to remain hovering around 10 percent, but the report is expected to show positive growth from a moth ago when unemployment rose to 9.8 percent from 9.6 percent. And last week, the new claims for jobless benefits increased, while the average number of Americans filing for unemployment insurance declined — a sign of a recovering economy.