The Atlanta Hawks lost to the Oklahoma City Thunder 100-92 at home at Philips Arena.  This was the second game of a back-to-back set for the Hawks.  This was also the second and final game of the Hawks' regular season series with the Thunder.  With the loss, the Hawks dropped to 15-8 on the season, 1-1 in the regular season series with the Thunder, and 1-1 in their back-to-back set.  The starters for the Hawks were Jeff Teague and Kyle Korver in the backcourt, DeShawn Stevenson and Josh Smith at the two forward positions, and Al Horford at center.  Devin Harris (left foot) did not play.  The leading scorer for the Hawks was Jeff Teague, with 19 points.  He also dished out nine assists, nearly giving him a double-double on the night.  Josh Smith added a double-double, with 17 piints and 12 rebounds.  Al Horford and Louis Williams contributed 13 points apiece.  Horford also had six boards.  The leading scorer for the Thunder was Kevin Durant, with a game-high 41 points.  In the first quarter, the Thunder went on a 10-1 run that extended into the second quarter.  In the second quarter, the Hawks allowed 32 Thunder points as the Thunder took a 55-41 halftime lead.  In the third quarter, the Hawks went on an 8-0 run and cut the Thunder lead to 73-66 heading into the final frame.  The Hawks cut the Thunder lead to four in the fourth quarter, but Kevin Durant reeled off 18 points in the quarter, and the Hawks lost by eight.  Before I review my keys to why the Hawks lost, I would like to congratulate Zaza Pachulia on passing Cliff Levingston for eighth on the Hawks' all-time offensive rebounds leaders list.  Now, moving on, I think there were a few key reasons the Hawks lost.  First off, Jeff Teague's defense has to get better.  He has allowed his point guard assignments to score a total of 54 combined points and dish out 22 combined assists in this back-to-back set.  His offense was very good on the set, but it was overshadowed by his defense.  Secondly, the Hawks have got to start making their free-throws.  They shot 64.7% at the charity stripe in this game, and the Thunder shot 95%.  Had the Hawks made all their free-throws, they would've only been down two.  Throw in better defense by Teague that stopped a couple Westbrook buckets, and the Hawks could've won by two.  Tough loss for the Hawks at home.