I didn't want to make a whole new thread for it, but I think it's good enough to justify doing so. Lots of great info in there, good and bad, but here's a few things that stood out to me:
The restricted area and 3-point range are the areas of the floor that yield the most points per attempt. If a team can limit your opponents' layups and 3-pointers, it has the foundation of a good defense. And no team did a better job of forcing their opponents to shoot from the area in between than the Pistons did.
The Pistons didn't make any major changes to their rotation this summer and defensive improvement will have to come from within. It can start with Andre Drummond, who ranks as a below-average rim protector. According to SportVU, opponents shot 52.6 percent at the rim when Drummond was there to defend it, a mark which ranked 48th out of 60 players who defended at least five shots at the rim per game in at least 40 games.
In the playoffs, the Pistons were outscored by just five points in 156 minutes with Harris on the floor and by 29 points in 36 minutes with Harris on the bench.