What are the key differences between the 3 technique and 5 technique in football defensive line play?

The key differences between the 3 technique and 5 technique in football defensive line play are the alignment and responsibilities of the players. In a 3 technique, the defensive lineman lines up on the outside shoulder of the offensive guard and is responsible for disrupting the interior of the offensive line. In a 5 technique, the defensive lineman lines up on the outside shoulder of the offensive tackle and is responsible for setting the edge and controlling the line of scrimmage.