This season,

Kyle Kuzma has a 56.3% TS in 759 minutes when LeBron James is on the court and a 48.1% TS in 567 minutes when LeBron James is on the bench

This season,

Kyle Kuzma has a 41.9% TS in 212 minutes when both LeBron James and Rajon Rondo are on the bench

This season,

Kyle Kuzma has a 58.2% TS when him and LeBron James are paired together on the court and Rajon Rondo is on the bench

- Kyle Kuzma has a 31.6% FG in isolation this season

My conclusion, if Kuzma doesnt have a PG creating for him he's complete garbage