Playbooks
Base 4-3 puts four down linemen (two defensive ends and two defensive tackles), three linebackers (MLB plus Sam and Will), two cornerbacks, and two safeties on the field, a run-first defensive identity built to match heavy offensive packages like 21, 12, and 22 personnel. In the Even 6-1 set, the outside linebackers walk up onto the line to create a six-man front with a lone Mike behind it, which kills inside zone, power, and QB sneaks in short yardage and goal line situations. Because it keeps only four defensive backs on the field, offenses that break the huddle in 11 or spread personnel can force a substitution or attack the linebackers in coverage.