Thunder report card: Grading OKC at the midway point

Oklahoma City Russell Westbrook and Carmelo Anthony get an "A" and "B" grade, respectively, for the first half of the season. [PHOTO BY NATE BILLINGS, THE OKLAHOMAN]Forty-two games down. Forty to go.

The Thunder expected to be better than 22-20 midway through its superstar experiment, but after seemingly righting its inconsistent offense in the final two weeks of December, the defense has come unraveled.

The Thunder is a ship where one hole gets patched up and another leak springs.

Rip off six consecutive wins in a row in 10 days behind the league's No. 1 offense? Check.

Lose five of seven with the defense playing like a bottom three squad? Double check.

Here's how the Thunder grades out for the…