Getting Defensive: Week 4

Many fantasy team managers use the strategy of alternating defenses based on whichever one is facing the weakest offense. That tactic usually has to wait until later in a season, when injuries start hampering teams, but 2009 is different in that there are many hamstrung offenses to choose from after only three games. This week's Getting Defensive will focus on which of these units will benefit the most from these favorable matchup situations.