Khalil A. Zaied, a jack of many trades, was today named Baltimore’s director of Public Works, an agency with many problems. Last seen as a deputy mayor under Mayor Stephanie Rawlings-Blake, Zaied will return to city government after a brief stint as public works director for Champaign, Illinois, a city one-sixth of Baltimore’s size. Prior to that, he was a vice president of KCI Technologies, helping supervise Baltimore’s big conduit dig under Greenmount Avenue, and as a manager for El Paso, Texas.