Which head coach led the Oakland Raiders to victory in Super Bowl XI?

Which team did the Oakland Raiders defeat in Super Bowl XI? Who was named MVP of Super Bowl XI? Fred Biletnikoff was named MVP of which Super Bowl? In which city was Super Bowl XI played? In what year was Super Bowl XI played? Which team did the Dallas Cowboys defeat in Super Bowl XII? In which city was Super Bowl XII played? Which head coach led the Dallas Cowboys to victory in Super Bowl XII?