After their third defeat in four games, each with a similar pattern, the Warriors convened Wednesday for what might reasonably be considered an emergency session. The popular choice to win a third consecutive NBA Finals, the Warriors are playing a lot of bad basketball as their fabled team culture faces its toughest challenge since Steve Kerr took over as coach in May 2014. The Warriors have plenty of air to clear, so why not get started after a 33-point loss at Oracle Arena – their worst home loss in nearly 400 games under Kerr?