The Pelicans rank 26th in the NBA in three-point % (31.7%), and the Cavaliers rank 13th in three-point % allowed (35.2%). The offense needs to find something against an average defense.
League average is 34.7%, so the Pelicans are 3.0 points below it. Zion Williamson leads them with 21.5 points a game on 67.2% true shooting.