In rules it is written that if you use slow tactics, your score is better, but in the end you score less. That's what happened here in the 4th quarter. The new engine changes are just like curse to me - if I use fast pace tactics I lose because I make a lot of mistakes and if I use slow tactics I lose in the last quarter like in your example.
It seems to me that recent engine changes has a lot of to do with stamina. As I remember it was said that slow tactis are better for those who have only few good players. So if I use slow tactics the manager keeps my starting players on the court as long as possible (apr. 46-48 min.) but eventually they got tired in the last quarter and that results in more missed shots. Still it's only my observations.