Rookie linebacker Demeco Ryans has been fantastic so far for the Texans.  The second round pick already has 47 tackles and 1.5 sacks and has been the leader of the defense so far this season!  DE Mario Williams is off to a slow start to his NFL career.  Williams has talent, but only 16 tackles and 1.5 sacks so far this season.  The Texans defense has been awful so far this season, but these two guys look like building blocks for the future.