Quote from buccaneersfan1990 >>
In cover 2 the linebackers go back right after the snap.
Corners are "run fits" in cover 2 so they typically set the edge. Safeties are in "run fits" in cover 4. Cover 3 is generally an intermediate pass defense. There is not a single hard rule. If opponent is base aligning out of cover 2 the corners will not be blocked, so for sure go inside or pass. In cover 4 the defense can move the safeties around pre-snap to stronger in different areas. In general though test Cover 3 everywhere, Cover 2 inside, and Cover 4 with draws (safeties try to recover).
Quote from buccaneersfan1990 >> In cover 2 the linebackers go back right after the snap.
Corners are "run fits" in cover 2 so they typically set the edge. Safeties are in "run fits" in cover 4. Cover 3 is generally an intermediate pass defense. There is not a single hard rule. If opponent is base aligning out of cover 2 the corners will not be blocked, so for sure go inside or pass. In cover 4 the defense can move the safeties around pre-snap to stronger in different areas. In general though test Cover 3 everywhere, Cover 2 inside, and Cover 4 with draws (safeties try to recover).