1. Trust the force, take as much space as needed to avoid getting beat to that side by cutters.
2. To the extent that your opponent is faster/taller than you, shade to the deep side, unless in the end zone or you're sure there's no threat of the throw.
3. Keep your hips/feet in the same alignment as your opponent's.
4. Call help/switches as soon as you are 1 step behind, but only when you see who can help.  Use that person's name, keep running hard on your opponent until help is acknowledged.
5. When we are in Person defense and the offense runs Vertical stack we will usually want to Bracket: