Ranking all 30 NBA defenses: Why the Grizzlies, Celtics and Nets stand out from the pack | CBS Sports Headlines Ranking all 30 NBA defenses: Why the Grizzlies, Celtics and Nets stand out from the pack The Cavaliers had the best defense in the NBA last season ESN FeedsThis post … Continue reading Ranking all 30 NBA defenses: Why the Grizzlies, Celtics and Nets stand out from the pack