One of the video game sector’s biggest players is undergoing a management transition. Phil Spencer, who joined Microsoft as an intern in 1988 and has led its Xbox video game unit since 2014, is retiring. Asha Sharma will become EVP and CEO. Matt Booty will become EVP and Chief Content Officer, reporting to Sharma. Xbox President Sarah Bond has resigned. The video game business has gotten more turbulent for the traditional console giants and major publishers as mobile and casual gaming keeps disrupting pas ...