In Business This Week
-- Boone Pickens gave two board seats to a dissident investor, averting a proxy fight.
-- General Motors will unload its National Car Rental unit for as much as $1.5 billion.
-- Ian Diery, a key executive, quit Apple after a reorganization left him in the cold.
-- Gulf Air called off its order for Boeing 777s, which could have been worth $1.7 billion.EDITED BY KEITH H. HAMMONDS