If a team runs 95% of their formations without an eligible receiver, why would the defense run a 3 man front with linebackers and db's back from the line of scrimmage. I am referring to the Boylan defense vs. East last night. They stayed in this basic D and never blitzed from the edges, even when East had their running back almost 10 yds from the line of scrimmage. When 7-8 guys are blocking 3 it is very easy to get to the second level and their assignments are the same the entire game. If I am wrong then please tell me why? Do other teams change their defensive alignments based on what type of team they are playing or do they have the same alignment all year?