Gov. Jennifer Granholm has appointed a fact-finder to intervene in the negotiations between the Detroit Public Schools (DPS) and the Detroit Federation of Teachers (DFT), as many teachers refused to return to work yesterday despite a judge's ruling. Margaret Leibowitz, Wayne State visiting professor of labor and employment, says that usually, when union members defy a court order to return to work, the judge holds the leadership of said union - not the members - at fault. Leibowitz adds that the DFT did not order or suggest that teachers defy Judge Susan Borman's order.