payitforward wrote:In any case, it's not an important debate, since we didn't choose between the two guys.
OTOH, it really isn't even close, Zards
Oh alright we can beat this thing to death again.
Again we get into the debate of role vs efficiency. The temptation with a surface analysis of box score measures is to deify efficiency as a pure and sacred measure of basketball skill. In this way we raise our esteem of tertiary players and discredit those who are primary generators of offense. While doing so we hand waive away the fact that high usage scorers will attract defenders and teams will game plan to stop them.
Cameron Johnson is a solid player. A smart player who does not force the action but takes what is given to him. Still, some of the efficiency he has posted in his career is due to the role he has with the team, which is: hit open shots. This is magnified by the fact that his low usage (and the presence of a HOF PG on his squad) means more of his shots are actually wide open
You can check this by looking at the fantastic NBA stats pages. Check the
Players Shooting Dashboard: Closest Defender tables. You have to manually toggle the distance and cross reference between the two, or you can take my work for it.
Closest Defender Very Tightly defending player (0-2 ft)Cameron Johnson. .4 FGA/game vs v.tight defense, eFG vs v.tight defense: 42.9%
Kyle Kuzma: 1.1 FGA/game vs v.tight defense, eFG vs v.tight defense: 45.1%
Closest Defender Tightly defending player (2-4 ft)Cameron Johnson. 2.7 FGA/game vs tight defense, eFG vs tight defense: 52.2%
Kyle Kuzma: 7.3 FGA/game vs tight defense, eFG vs tight defense: 53.1%
Shooting while Open. Closest defender 4-6ft away (guarded, but not tight)
Cameron Johnson. 3.3 FGA/game while open, eFG while open: 50%
Kyle Kuzma: 6.7 FGA/game while open, eFG while open: 52.9%
Shooting Wide Open. Closest defender 6+ft awayCameron Johnson. 3.8 FGA/game wide open, eFG wide open: 70%
Kyle Kuzma: 2.7 FGA/game wide open, eFG wide open: 48.6%
So. The majority of Cam Johnson's shots per game are open or wide open shots. Whereas the majority of Kuzma's shots are while he is tightly guarded. Cam Johnson shoots significantly better than Kuzma when he is wide open (rare for Kuzma since 85% of his shots happen with a defender within 6 ft). But in every other instance Kuzma maintains a higher eFG%, even while taking 15 shots a game while guarded, to Cam's 6.4 shots.
What this is quantifying is the amount of attention that Kuzma draws from opposing defenses. If he is tightly guarded, somebody else is wide open. Somebody else on his team gets the benefit of playing the Cam Johnson role. (Corey Kispert put up 2.8 shots per game while wide open, with a 71.2% eFG, imagine that).
Luckily in Cam Johnsons case we can see the difference in how usage effects efficiency since he switched teams mid year. Kuzma maintained a 27% usage rate on the Wiz this year and an eFG of .519. In PHX Cam Johnson had a 19% Usage rate, and an eFG of .604 next to a HOF PG. With the Nets that usage climbed to 21%, and his eFG fell to .565. So, what: For every 2% increased usage, Cam's efficiency drops .039%. Hmm, that suggests that if he were putting up 6% more usage (to match Kuzma's 27%) his efficiency might drop to a sub-Kuzman .487 eFG.
Ultimately the only place where you can definitively say Cam Johnson is a "much much better" player than Kuzma is that he is a much much better shooter than Kuzma when he is wide open. Which opportunity he gets more often than Kuz because he is not the focal point of his team's offense. Thus opponents do not scheme to freeze him out or make his life difficult. But if given an increased role and worse PG play, and forced to create his own offense, he is a worse player than he was in a limited role, quite probably worse than Kuzma since he would be defended.
tl;dr: role effects efficiency. Cam is worse than Kuz when defended. Stat nerds need to stop fetishizing indiv. efficiency as a standalone stat in a team game.
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Secret East Coast Vigilante forum decoder message.
in sum: PIF is wrong. Neener neener.
-so saith doctor nocturnal. Also PBBTHTTT!!