President-elect Donald Trump this week officially nominated former Republican primary rival Dr. Ben Carson to head the Department of Housing and Urban Development – a move that elicited mixed responses from industry and government quarters. Carson, a pediatric neurosurgeon, eclipsed possible contenders for the HUD job, including Scott Brown, former U.S. senator from Massachusetts; Ed DeMarco, former acting director of the Federal Housing Finance Agency; Rick Lazio, former Republican congressman from New York; Blaine Leutkemeyer, another Republican lawmaker from Missouri; Brian Montgomery, former FHA commissioner and HUD assistant secretary; and Pamela Patenaude, president of the Terwilliger Foundation for Housing America’s Families. Carson’s nomination is...