Quote:
Originally Posted by The Enigma
If that is the case, it speaks more to the flaws of the PER system then anything else.
Less then one more turnover per game for roughly two more assists per game is not a very bad ratio in LeBron’s favor when comparing two individuals that handle the offence as much as these two players do.
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PER incorporates both assists and turnovers. LeBron's PER gets credited for the assists and debited for the turnovers.
I think we tend to underestimate the cost of a turnover. It's worse than a missed field goal because there's no chance of an offensive rebound (not to mention turnovers sometimes lead to fast breaks, meaning easier-than-usual baskets for the opponent, but that's pretty hard to quantify). Teams get offensive rebounds on about a quarter of their missed shots, so a turnover is kind of like 1.33 missed shots.
So say both McGrady and LeBron go 11-22 from the field (50%) but McGrady has 0 turnovers to LeBron's 1. It would be roughly the equivalent of them both having 0 turnovers but LeBron shooting 9.67-22 from the field to McGrady's 11-22. Obviously that's not possible, but it comes to 6% worse from the field (44% to McGrady's 50%). That's a pretty significant difference over the course of a season.
PER probably does undercompensate for good passing, as assists aren't a very good measure of that. Similar thing with defense. LeBron is better than the 2003 McGrady at both these aspects of the game, so I'd rate him slightly better.