Alan Curbishley's turbulent spell as West Ham manager came to an abrupt end on Wednesday when he quit, saying the club had sold players against his wishes.Curbishley saved the east London club from relegation in the 2006-07 season but has had a lean time since. He becomes the first English Premier League manager to leave his job this season after the Hammers sold defender George McCartney to Sunderland.Before the sacking, West Ham released a statement justifying the sale of McCartney an