This is a Drill to practice Pick and Roll Defensive Situations.
You can Start with a 2 on 2 situation with a passive 3 passing option (1.Graphic). The Big man passes the Ball to the Wing who has to get open. The Big men follows for a pick and Roll. The Defense Hedges hard to stop the Penetration and the easy pass to the rolling Big man. The Offense uses the third passive man for passing Option to use the Pick and roll triangle. After that it is live play 2 on 2.

*Hedge hard/ recover quickly
*Force opponent guard/wing to retreat/ not being able to attack basket either through the middle or base line
*Post-up strong
*Play defense on posting player

Let guards attack middle.
Let guards attack base.
Play 3-on-3 and let guards pass it either to wing (help from weak side) or to diving/poping screener
- You can Use the same principal drill to practice different Pick and Roll Defenses (Push and under, switch, double team etc.)

This is a Defense Drill. Focus on that part. Maybe even install that only Defensive Stops count to win the drill.