Loss to Thunder reveals that Dallas Mavericks' defense is in sad shape

Here's a look at four key things we can take from the Mavericks' 107-93 loss at Oklahoma City Wednesday night.

First, their defense really is in sad shape.

Second, Vince Carter is probably looking at a suspension for his elbow/forearm to the head of Oklahoma City rookie Steven Adams.

Third, turnovers continue to be the Mavericks' biggest problem offensively.

Fourth, the Mavericks have no answer for Serge Ibaka.