Justin Leith, Head Girls’ Basketball Coach, Bullis School, MD
This video is a segment from one of the 120 Videos in Glazier Drive Basketball.
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The full video that this clip came from is available on Glazier Drive: Full & Half Court Pressure Defense
OVERVIEW
This is a basketball practice film session focused on defensive fundamentals, using two core drills: a 3-on-3 vs. coaches drill and a “Four Corners” drill. The coach walks through terminology, defensive positioning, and common player mistakes, with a brief Q&A from a viewer mixed in.
DRILL 1: 3-ON-3 VS. COACHES
- Setup: Starts at the baseline, three coaches on the outside acting as offense (used instead of extra players since the team is short on numbers), creating a competitive, game-like disadvantage for the defense.
- Purpose: Reinforces defensive points of emphasis in a condensed format, used even more than 5-on-5 shell work.
- Key coaching points:
- Closing out — elbow above shoulder on the player one pass away.
- Denial defense — staying attached to the passing lane.
- Two passes away — defenders should sag to the middle of the floor (help position) since a skip pass takes time to develop.
- Stop the ball — the top priority; whoever is closest must stop dribble penetration, even if it means switching.
- Close the door — bringing the feet together to cut off dribble penetration.
- Not losing sight of your man — a common mistake is ball-watching, which opens up back-door cuts.
- Meeting baseline drivers outside the lane — both heels outside the lane, hands straight up to draw a charge instead of fouling.
- Cut the floor in half — team’s term for help-side positioning; defenders should be able to cover ground on anything two passes away without needing lane-line tape as a reference.
- Live examples: The coach highlights both good possessions (seamless switching, good communication, hands up) and mistakes (losing sight of a man, late closeouts, poor communication between two defenders on one attacker).
DRILL 2: FOUR CORNERS
- Setup: Two offensive players up top, two defensive players on the bottom; ball starts on one side and is reversed to the other, and the drill goes live from there.
- Focus: Closing out (elbow above shoulder), help defenders sprinting to the middle of the floor, and executing “show and switch” or “show and stay” coverages depending on the day’s game plan.
- Coaching approach: The coach stops the drill immediately when technique is wrong (e.g., a player not sprinting to elbow-above-shoulder or failing to get a hand up), insisting on doing the rep correctly rather than moving on.
- Mindset: Live-drill mistakes (like a blown coverage leading to a layup) are treated as acceptable teaching moments, since real games will have additional weak-side help not present in this smaller drill.
BIG-PICTURE TAKEAWAY
The consistent theme is that disciplined, live, competitive reps in small-sided drills (3-on-3, 4-corners) build habits — closing out properly, communicating, stopping the ball, and maintaining help-side awareness — that translate directly and “seamlessly” into full 5-on-5 team defense.
