This one doesn't come as much of a surprise. Last year, the Houston Rockets ranked 25th in opponent points per game, 21st in defensive rating and 7th in pace.
This year, in Mike D'Antoni's run-and-gun system, the Rockets are surprisingly a little slower in pace, at 97 possessions per game (16th in the league), but they're dead last with an adjusted defensive rating of 113.91. This amounts to 110.49 true points allowed, which is 2.59 above their season average of 107.9 actual points given up per night.
With the exception of Clint Capela at center, you can't go wrong targeting any other spot within the Rockets' defensive lineup. While the young center boasts the best defensive rating on the team (at 106), the rest of the regular starting five possess ratings no better than 110 points allowed per 100.
Maybe the best position to roster opposing players for would be power forward -- for two reasons. Ryan Anderson has earned a defensive rating of 115, which is worst among all five starters. In addition to Anderson's personal struggles on the defensive end, as a team the Rockets are 23rd in defensive rebound percentage and allow 10.3 offensive rebounds per game.
Offensive rebounds equal bonus possessions, which is great for power forwards -- or any other player, for that matter -- in a matchup with Houston.