The Denver Broncos are only allowing 253.5 yards of offense this season (70.0 rushing, 183.5 passing) and 6.5 points per game.  A big reason for the improvement of the defense was the addition on inside linebacker Andra Davis in the off-season.  He has 19 tackles to lead the Broncos so far this season and he has a sack and three tackles for a loss.  OLB/DE Elvis Dumervil has been like the Tasmanian Devil so far this season.  He has 9 tackles, 4 sacks, 1 forced fumble and he has defensed 2 passes this year so far.  If both of these guys keep playing at this level the Broncos could have a solid defense all season long.