For seven years, Thunder point-of-attack defense came with one dependable instruction: give Lu Dort the opponent’s nastiest perimeter assignment and let him make the night miserable. Luka Dončić felt that pressure during the 2024 playoffs. Anthony Edwards dealt with Dort’s strength and angle control in the 2025 Western Conference finals. Kevin Durant, Giannis Antetokounmpo and other stars received versions of the same treatment.
Now he plays in Atlanta.
The Thunder traded Dort in July, receiving three future second-round picks while dropping below the NBA’s second tax apron. The deal also generated a $17 million trade exception, giving Oklahoma City additional roster flexibility after parting with one of the defining defenders of its rise.
The accounting makes sense. The basketball question remains harder.
Oklahoma City still has Cason Wallace, Alex Caruso, Jalen Williams and Chet Holmgren. Yet Dort absorbed a type of punishment that rarely appears on a stat sheet. As camp approaches, Mark Daigneault must decide who takes those collisions now.
The system survived. Its first line changed
Dort’s relentless ball pressure served as the anchor for Oklahoma City’s defensive chain. He fought over screens, crowded pull-ups and forced powerful scorers away from their preferred driving lines. Against Dončić, he could absorb shoulder contact without surrendering the lane. Against Edwards, his strength allowed the Thunder to defend more possessions straight up before sending extra help.
Daigneault once captured the unusual combination behind that work. “He really moves incredibly well laterally for somebody that size,” the Thunder coach said while discussing Dort’s defense against Dončić. The feet mattered, but so did Dort’s ability to take contact and immediately resume the chase.
That work protected everyone behind him. When the first defender stays attached, Holmgren can remain closer to the rim instead of stepping toward the foul line. Weak-side defenders can hug shooters longer, and the low man does not have to abandon a corner early. The entire defense preserves its spacing.
Lose the first matchup, however, and the possession changes fast. A guard turns the corner, Holmgren steps up, the low man tags the roller, and suddenly a shooter waits in open space. Point-of-attack defense determines how often Oklahoma City has to enter that rotation cycle.
Last season, the system rarely cracked for long. The Thunder finished 64-18 with a 106.5 defensive rating, the best mark in the NBA. They also held opponents to 43.7% shooting while leading the league in deflections and points off turnovers.
Those numbers came from collective pressure, not one player. Dort simply gave that pressure a reliable starting point.
What Oklahoma City actually has to replace
Replacing Dort does not mean finding another 6-foot-3 defender with a similarly powerful frame. The Thunder need to replace his assignments, his durability and the freedom he created for teammates.
Caruso can wreck an action before it develops. Wallace can turn a loose crossover into a steal. Williams can switch onto a bigger wing, while Holmgren can erase a mistake at the rim. None of those skills requires Oklahoma City to imitate Dort possession for possession.
The challenge instead involves distribution.
Who guards the explosive point guard on Monday, the 230-pound wing on Wednesday and the jumbo creator on Friday? More importantly, can the Thunder spread those jobs around without weakening the offensive roles of Wallace, Williams and Caruso?
That answer begins with Wallace.
Cason Wallace gets the first shot
The most obvious successor already spent last season building the statistical case.
Cason Wallace averaged 4.4 deflections per game across the full 2025-26 regular season. NBA tracking data placed him first in the league, while his 150 total steals also led all players. Wallace appeared in 77 games, started 58 and earned Second Team All-Defensive honors.
His style differs from Dort’s. Wallace wins with anticipation, quick hands and recovery speed rather than overwhelming strength. He squeezes through narrow gaps, recognizes when a ballhandler exposes the dribble and rarely needs a reckless gamble to create disruption.
The harder test comes with assignment volume.
A defender who shadows the primary creator has fewer chances to freelance into passing lanes. Repeatedly fighting over screens also drains energy and limits opportunities to hunt steals away from the ball. Wallace could therefore become more valuable to Oklahoma City even if those gaudy deflection numbers decline.
That trade-off would be perfectly acceptable.
The goal of Thunder point-of-attack defense is not to manufacture highlight steals. It is to stop an offense from reaching its second advantage. If Wallace forces a ballhandler backward, pushes a screen farther from the basket or funnels a drive toward Holmgren, he has already improved the possession.
His physical ceiling against bigger creators remains the unanswered part. Dort could absorb a shoulder from a powerful wing, lose half a step and still recover into the play. Wallace will face nights when technique alone cannot erase the size difference.
That is where Caruso becomes essential.
Alex Caruso works best as a scalpel
Caruso does not need Dort’s old job title to become Oklahoma City’s most important situational perimeter defender. His value comes from diagnosis.
The veteran reads ball screens, handoffs and pindowns in real time. He knows when to shoot a gap, when to switch and when to peel back toward a secondary threat. His best possessions often end before the ballhandler recognizes the advantage that disappeared.
That subtle shift in leverage separates Caruso from pure perimeter enforcers.
Wallace can carry more of the nightly volume. Caruso can attack the possessions that matter most: the final six minutes, an opponent’s favorite set after a timeout, or a fourth-quarter stretch when a star guard starts finding rhythm.
Such a division also protects the 32-year-old veteran from an unnecessary regular-season workload.
During Oklahoma City’s championship run in 2025 and again last season, Caruso gave Daigneault a defender capable of checking guards one possession and surviving against larger players the next. His versatility keeps switching from becoming an automatic mismatch.
For point-of-attack defense, that flexibility may matter more now than ever.
Game 7 exposed how quickly one advantage spreads
San Antonio delivered the sharpest postseason reminder of why the first line matters. The Spurs beat Oklahoma City 111-103 in Game 7 of the 2026 Western Conference finals, knocking down 17 of 40 three-pointers. Julian Champagnie supplied six of them and finished with 20 points. One third-quarter sequence illustrated the tactical problem more clearly than the final numbers.
San Antonio flowed into a horns action with Victor Wembanyama rolling toward the basket. His gravity pulled Jared McCain toward the middle, and Stephon Castle immediately found Champagnie uncovered beyond the arc. Champagnie buried the three to tie the game at 63.
On the next possession, Wembanyama caught the ball in the post and attracted extra attention. The Spurs moved the ball back toward Champagnie, who drew a three-shot foul.
Two possessions exposed the same pressure point: Oklahoma City shifted bodies toward Wembanyama, and San Antonio punished the space outside.
Dort played in that Game 7, so the sequence does not tell us what the Thunder will look like without him. It offers something more useful. Even an elite defense has little margin once the initial coverage forces a second and third defender to move.
Without Dort available to absorb the toughest perimeter matchup, those early decisions carry even more weight.
Chet Holmgren protects the margin for error
The easiest way to survive a weaker first line would be to own an elite back line. Fortunately for Oklahoma City, Chet Holmgren provides one.
Holmgren earned First Team All-Defensive honors after averaging 1.9 blocks in 69 games. NBA tracking data also showed opponents shooting just 44.9% on two-point attempts he contested, the best figure among defenders who challenged at least 400 such shots.
His presence changes how aggressively Wallace and Caruso can play. They know one mistake does not automatically become a layup.
Yet asking Holmgren to repair every mistake would waste what makes him special. He becomes most dangerous when he can protect the rim while still reading the next pass. If repeated blow-bys drag him several feet away from the basket, Oklahoma City loses some of that advantage.
Strong point-of-attack defense therefore protects the rim protector as much as the rim protector protects the guards.
Jalen Williams supplies the size counter
A healthy Jalen Williams could solve the matchup that Wallace cannot.
Williams has the frame to deal with larger creators, and his switchability allows Oklahoma City to avoid automatic mismatches when offenses hunt smaller guards. He made an All-Defensive team in 2024-25 and remains one of Daigneault’s most flexible options when strength matters as much as foot speed.
Health complicates the calculation. Williams appeared in only 33 regular-season games last season while dealing with wrist and hamstring issues, then played just five postseason games. He missed Game 7 against San Antonio after aggravating his hamstring, leaving Oklahoma City without one of its best two-way counters at the worst possible time.
That history should discourage the Thunder from assigning him every oversized creator. Williams also carries major offensive responsibility beside Shai Gilgeous-Alexander. Making him wrestle powerful wings for 35 minutes can solve a defensive matchup while draining one of Oklahoma City’s primary creators.
A better division of labor gives Wallace more of the speed assignments, uses Williams selectively against size and turns to Caruso when recognition and disruption matter most.
That approach also fits the broader identity Gilgeous-Alexander described during Oklahoma City’s 2025 championship run: “It always starts defensively for us.”
The personnel may change. The expectation does not.
The bench determines whether the pressure lasts
That expectation cannot stop with the closing lineup. Over 82 games, foul trouble, injuries and matchup hunting will force Oklahoma City deeper into its backcourt. Dort, Aaron Wiggins and Isaiah Joe are gone, leaving Ajay Mitchell, Jared McCain and other younger guards to absorb minutes that once belonged to more established rotation players.
Opponents will find them quickly.
A vulnerable guard can expect his man to screen for the primary creator, forcing him into the action again and again until Daigneault changes the coverage. Mitchell does not need to become Dort, and McCain does not need Wallace’s steal numbers. They simply need to prevent ordinary possessions from turning into automatic matchup hunts.
Game 7 offered the warning. McCain supplied needed offense that night, but San Antonio also had reasons to involve him defensively. With Williams and Mitchell injured, Daigneault had fewer counters once the matchup became uncomfortable.
A healthy roster restores some of that flexibility. Development from the younger guards could add another layer, giving Daigneault enough trustworthy defenders to keep Oklahoma City’s pressure intact across multiple lineup combinations.
Camp will reveal the new defensive hierarchy
Training camp will not answer every question, but the assignments should tell us plenty.
Watch who opens scrimmages on Gilgeous-Alexander. Track who navigates the first screen instead of switching automatically. Notice whether Wallace draws the toughest creator every possession or whether Daigneault rotates Williams and Caruso through the matchup.
Those details will reveal how Oklahoma City plans to rebuild its point-of-attack defense without overloading one replacement.
Wallace has earned the first opportunity. His hands, anticipation and recovery speed make him the logical candidate for more nightly responsibility. Caruso remains the tactical specialist who can shred an opponent’s favorite action. Williams supplies size when healthy, while Holmgren gives everyone an extraordinary layer of insurance. None of them, by himself, replaces Dort. That may become the point.
For years, Oklahoma City could send one of the NBA’s strongest perimeter defenders toward the opponent’s best scorer and build the rest of the coverage from there. The next version may require several answers instead of one.
The Thunder already know they can build an elite defense. Last season’s league-leading rating settled that question.
Camp will test something narrower and more interesting: without Dort absorbing the first collision every night, can Oklahoma City keep opponents from creating that first advantage at all?
READ MORE: Thunder point-of-attack defense braces for life after Lu Dort
FAQs
Who will replace Lu Dort as the Thunder’s primary perimeter defender?
Cason Wallace has the first opportunity. Alex Caruso and Jalen Williams can also take difficult matchups depending on an opponent’s size and style.
How good was the Thunder’s defense last season?
Oklahoma City finished 64-18 with a 106.5 defensive rating, the NBA’s best mark. The Thunder also held opponents to 43.7% shooting.
Why is Cason Wallace important to the Thunder defense?
Wallace averaged 4.4 deflections per game and led the NBA with 150 total steals. His next challenge involves handling tougher assignments more often.
How does Chet Holmgren help Oklahoma City’s perimeter defenders?
Holmgren protects the rim behind them. His presence lets Wallace and Caruso pressure ballhandlers more aggressively without turning every defensive mistake into an easy basket.
What should fans watch during Thunder training camp?
Watch the defensive assignments. Wallace’s matchup workload and how Daigneault rotates Caruso and Williams should reveal Oklahoma City’s post-Dort defensive hierarchy.
