What Shark does
Shark is our 1-1-2-1 Lightning defense. Get the ball out of the middle, keep it on one side, and deny the easy passes. Pressure the ball so the offense cannot stand tall, read the floor, and pick apart our rotations.
SHARK IS A TURNOVER DEFENSE. GO FOR STEALS. EXPECT A TURNOVER.
We are not waiting for the offense to finish its play. We pressure the ball and close the passing lanes until the offense gives us a pass to steal or forces a bad shot.
Shark is the original member of the Lightning family. Coach Fontenot named it for Jerry “The Shark” Tarkanian and drew inspiration from the UNLV Runnin’ Rebels’ amoeba defense. His Lightning defenses adjust that approach for an offense that shoots more threes. Shark keeps the emphasis on denying post entries and discouraging drives while changing the coverage of the perimeter.
Teach X-Ray first. X-Ray introduces the habits and responsibilities that players will recognize in Shark. Shark changes the starting alignment and the assignments.
Lightning can extend into full-court pressure. The assignments below explain our half-court defense.
Same habits, fixed positions
NO PASSIVE ZONE MENTALITY. Our alignment does not give you permission to stand. Pressure the ball. Deny passes. Anticipate and move.
SEE THE SCREEN. SEE THE OVERLOAD. Keep checking where offensive players are moving. An overload puts extra offensive players on one side.
In X-Ray, the guards exchange A-Guard, B-Guard, and C-Guard jobs. In Shark, the position titles stay with the players. Where a player works changes with the ball. Shark does not use X-Ray’s fight for B-Guard exchange.
- C-Guard: the top defender, responsible for getting the ball out of the middle and denying the reversal.
- B-Guard: the middle defender, denying post entries and backing up the ball pressure.
- Left Wing and Right Wing: the two side defenders, switching between ball pressure and weak-side block coverage.
- T -- Tough Guy: the bottom defender, fronting the strong-side post and covering both corners.
In the 1-1-2-1 alignment, C-Guard is the first one, B-Guard is the second one, the wings are the two, and T is the last one. The final naming choice in Coach’s explanation puts C-Guard at the top and T at the bottom. Earlier references to a top A-Guard or a bottom C-Guard describe the old names. They are not additional positions.
Three ways Shark gets turnovers
1. Steal the skip
Wings: anticipate the skip. Get it out of the air and be gone.
The offense cannot reverse the ball easily through the top. That encourages the long pass across the court. A slow skip gives the wing time to read it, move, and steal it.
Do not stand at the weak-side block waiting for the receiver to catch. Read the passer and attack the ball in flight. Going for these steals is part of the wing’s job.
2. Steal the inside pass
A gut pass, a high-post pass, a low-post pass, or a pass into the middle is a chance to take the ball.
We rotate with our hands up. The offense sees a small opening, but our defenders are moving into that passing lane. Get a hand on the pass and take it.
The ball pressure matters because it makes those decisions harder. We do not depend on a heroic on-ball steal. Picking the ball handler’s pocket occasionally happens, but the passing lanes produce the steals we are building the defense to get.
3. Turnover by shot
Frustrate the offense into forcing a bad shot.
The offense cannot get the post entry, cannot reverse the ball freely, and cannot calmly run its offense. Eventually, a frustrated player may force a shot the offense should not take. We call that turnover by shot.
That is not permission to stop defending when the shot goes up. The weak-side wing must block out and help finish the possession.
OFF THE BALL: SEEK AND DESTROY. When the shot goes up, snap your head around, find an offensive player, and block out with legal contact. THEY ONLY GET ONE SHOT.
Ball at the top: Close the middle
C-Guard meets the ball near half court and runs the ball handler out of the middle. The ball cannot settle at the top and feed the paint.
B-Guard backs up C-Guard around the free-throw-line area. B-Guard discourages the inside pass and is ready to stop the drive.
Both wings pinch in. They are close enough that a raised hand can reach into the paint. Hands stay up to discourage a straight pass from the top into the middle.
T starts down the middle, in front of the rim.
Once the ball handler chooses a side by dribbling or passing, C-Guard melts into the passing lane and denies the return. Do not trap. Run the ball out of your yard, then take away the way back.
Ball on the wing: Five players, five jobs
Ball-side wing: Pressure and contain
Use the same on-ball actions taught in X-Ray.
RUN THEM OFF THE LINE. ONE DIG. POP YOUR FEET BACK. TURN THE DRIBBLER.
Close out hard, dig at the ball once, and pop back so you can contain the drive. Keep the ball handler’s head down. Turn the dribbler after one dribble.
A bigger wing closing hard can bother a smaller offensive guard. The offense may respond by trying to drive that matchup. Shark is arranged to discourage that drive with B-Guard behind the pressure.
TURN THEM WITH YOUR CHEST. Move your feet into the driving line and make the dribbler change direction.
C-Guard: Deny the reversal
C-Guard’s number-one job is to prevent the reversal pass.
Melt off into the passing lane as the ball goes to the wing. The ball cannot come easily back to the top. Do not follow the ball into a double team.
B-Guard: Deny the post and stop the drive
Deny the high-post entry when the ball is on the wing or higher. Keep your hands up and be ready to back up the on-ball defender.
B-Guard is the plug and the stopper. Size and strength can discourage the entry pass and the drive at the same time.
When the ball goes to the corner, B-Guard drops to deny the low post.
JAB AND MELT. Show at the driver, then melt into your passing lane with at least one arm in it. Do not jab and stand. Do not stay to double.
This is a shared Lightning action. Shark’s exact limits on which defenders show help remain to be defined.
T: Front the post and anticipate the corner
T works on the strong side. Front the post and expect the next pass to the corner. T covers either strong-side post as the ball changes sides and must reach either corner.
Front like you want the ball on offense. Be tough enough to hold the position and alert enough to leave for the corner on time.
Toughness alone is not enough. T must read what is coming. Read the pass early. Do not wait for the corner catch to start moving.
Weak-side wing: Own the block and read the skip
The opposite wing drops all the way to the weak-side block. Ride the block with butt to the baseline and hands up, as taught to the weak-side forward in X-Ray.
Anticipate the skip. When the slow pass goes across the court, go get it.
When a shot goes up, block out at your block. This cannot be a player who gets jumped over every time the offense misses. Finishing the possession is part of the assignment.
Ball in the corner: Double drop
T closes out to the corner and pressures the ball. Run the receiver off the line.
At the same time, the two middle defenders drop:
- B-Guard: sprint from the high-post area to deny the low post.
- C-Guard: sprint from the top to deny the high post.
HURRY UP AND WAIT. Sprint to your assignment. Get there early, in your stance, with your hands up.
That is the double drop, the same action named in X-Ray. Both defenders have their hands up and close the passing lanes between them.
The ball-side wing turns into long-trap denial. Take away the pass back to the wing and expect that offensive player to back cut. Deny the back-cut pass as well as the return pass.
The opposite wing remains responsible for the weak-side block and the skip.
NO LOW-POST PASS. NO HIGH-POST PASS. NO EASY PASS BACK TO THE WING.
We want the corner ball handler facing pressure and denied outlets. The offense is left trying to drive into the defense or send the ball on a long trip across the court.
Denial keeps Shark together
KEEP THE BALL ON ONE SIDE.
A long skip gives the defense time to move and the wings a chance to steal. Easy perimeter passes do not.
If the offense passes freely from the corner to the wing, from the wing to the top, and then to the opposite corner, T cannot get across in time. That is how poor denial gives up an open corner three.
Every defender must take away the easy next pass. Ball pressure must keep the passer occupied instead of allowing a clear view of the rotations.
Compared with X-Ray, Shark depends more heavily on denying that quick reversal because one bottom defender covers both corners. Players keep their jobs, but they still have to sprint into denial on time.
Choose players for the work
There is no single Shark lineup. Player intelligence, toughness, athletic ability, and size can be combined in different ways. Each lineup takes away different opportunities and leaves different matchups for the offense to attack.
T: Read early and cover ground
The quality of the bottom defender is a major factor in Shark’s success. Coach has used several types successfully:
- A lanky 6-foot-1 or 6-foot-2 athlete with the range and anticipation of a football free safety or wide receiver.
- An intelligent 6-foot-5 rim protector with a good first step who could anticipate corner passes and even block corner threes.
- A shorter, quick basketball guard with strong court understanding, track speed, and enough toughness to front the post.
A small, strong guard may handle the bottom for a few possessions. Watch whether the offense recognizes and attacks that post mismatch. Success for a few trips does not mean the mismatch disappears.
Wings: Defend and rebound
The forwards used in X-Ray can fit well at the wings in Shark. Their size can bother perimeter receivers, and their strength matters when they become the weak-side rebounder.
Smaller wings can work when they are strong, smart, and tough enough to block out the weak-side block. Height does not excuse poor rebounding, and guard speed does not replace a block-out.
C-Guard: Make the reversal difficult
Height at the top makes the pass over or around the defense harder. A tall, athletic C-Guard can get hands on cross-court passes.
A smaller player can still succeed through intelligence and anticipation. Coach has used a strong 5-foot-7 point guard who understood how to deny the reversal.
B-Guard: Plug the middle
B-Guard can be a true center, including a slower-footed player who can deny the high and low posts and stop drives. Size helps protect the passing lane and discourage penetration together.
A smaller B-Guard may work in some matchups. Be honest about the price when the offense can pass or finish over that defender.
Lineup options
- One tall, four guards: place the tall at B-Guard or T.
- Two talls, three guards: use both wings, C-Guard and B-Guard, or B-Guard and T.
- Three talls, two guards: use C-Guard, B-Guard, and T down the middle; or use both wings and B-Guard, with guards at the top and bottom.
These are options, not a mandatory depth chart. In the older lineup examples, the top position was called A-Guard. It is C-Guard in this document.
Tall, athletic players at the top and B-Guard can also benefit in transition. Coach’s earlier teams used athletic finishers in those positions to turn stops into fast breaks.
Full-court pickup and rotations, screen coverage, and overload responses still need to be defined. Awareness cues do not assign those rotations.
Details still to define
The following are not yet assigned by Coach’s explanation:
- On a skip to the opposite corner that the wing does not steal, the exact closeout and recovery exchange between that wing and T.
- Whether Shark uses the exact X-Ray rule that B-Guard is the only drive helper, with the same jab-and-melt limits for everyone else.
- Whether the formal bottom-position title should be T, T-Guard, or Tough Guy. This draft uses T -- Tough Guy, the name Coach supplied.
Do not fill those gaps with an assumed rotation. Shark shares Lightning habits; that does not make every X-Ray exchange a Shark rule.