Thunder Own the Preseason Metrics, But Spurs and Pistons Are the Real Sleepers

The scoreboard says everyone's 0-0, but the efficiency numbers are already screaming. Oklahoma City enters the regular season with a preseason net rating of +10.9—best in the league by a comfortable margin—coupling elite offense (117.0) with suffocating defense (106.0). The Thunder aren't just good on paper; they're…