Reuters: Viacom’s chief operating officer, Thomas Dooley, has not renewed an employment agreement set to expire in 12 months, a situation that compensation consultants say is unusual and raises the question of whether he will stay with the multi-billion dollar media company as it tries to turn its fortunes around. The uncertainty could further unsettle investors who have already confronted the company about the health of Viacom’s 92-year old controlling investor and executive chairman Sumner Redstone.