The Cavaliers are now 20th in the NBA in defense And that's a historically big problem The only team to win an NBA title with a below-average defense Since the NBA/ABA merger was the 2001 Lakers A juggernaut of a defending champ that cruised through the season and finished 21st in defense. Can the Cavs flip the switch like the Lakers did, going 16-1 in the postseason?

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