Can someone explain the 3-4 defense???? I understand the concept but why has it been so difficult for Oregon. Is it because of a lack of athletes, or poor coaching, or just a difficult defense to grasp? And what defensive set is the most popular??? Are there any big time teams using the 3-4 that are very successful??? And what defensive set does everyone want to see at Oregon????????????????? and what set do most Pro teams use????? Lots of questions, sorry but very interested in some feedback.