"as well as" Yeah, saw that. It just didn't make sense. PER has flaws. Got it. But there's no verb after as well as. His diminished role does what? His defensive contributions mean what? I made the leap that you were suggesting a diminished role hurt Pierce's production, so I pointed out that PER accounts for that. For the record, I don't like that you make me defend Paul Pierce, an annoying turd of a player who throws Crip signs during NBA games. That said, Paul Pierce is a very good defensive player. PER doesn't account for defense accurately. In fact, the defensive stats it does use, steals and blocks, skew a player's perceived statistical defensive ability (see Thomas, Tyrus and his affect on Derrick Rose's fouls in the first quarter of last game). Evaluating Paul Pierce's rank in the NBA hierarchy based solely on a stat that doesn't factor defense is seriously flawed. As to the diminished role and PER accounting for that, I think it does a bad job. I mean, it still measures the player's per-minute efficiency, but that doesn't accurately reflect the bigger numbers a player like Pierce would put up with the ball in his hand more and a larger offensive role. Pretty obvious to me that, say, Michael Jordan wouldn't put up as high a PER with the Dream Team as he would with the Bulls because his role was diminished. So no, I don't think PER accurately measures a player's ability. It's why the NBA still requires the layman to have a more sophisticated "eye test" than the lay baseball fan who can just rely on advanced statistical analysis and have a better understanding of the value of a player's contributions that someone who just watches the games without paying attention to stats. Keep in mind, I already admitted to assigning Pierce as a "top 10 NBA player" out of laziness to make a point. What I'm speaking to here is purely your use of PER as an indictment on his actual rank in the NBA hierarchy.