Timothy Massad, the newly appointed chairman of the Commodity Futures Trading Commission, made one of his first major decisions at the agency with the appointment of a new enforcement chief Tuesday. Mr. Massad named Aitan Goelman, a Washington, D.C.-based trial lawyer with the law firm Zuckerman Spaeder LLP, head of the agency’s enforcement division. He replaces acting enforcement chief Gretchen Lowe and will inherit a full plate of cases, ranging from ongoing probes into manipulation of the London interbank offered rate, or Libor, currency manipulation and derivatives-rigging investigations. More in the Wall Street Journal here.