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The triangle offense, also known as the triple-post offense, is an offensive strategy in basketball. Its basic ideas were initially established by Hall of Fame coach Sam Barry at the University of Southern California. His system was later refined by former Kansas State University head basketball coach Tex Winter, who played for Barry in the late 1940s. Winter also served as an assistant coach for the Chicago Bulls in the 1980s and 1990s and was also an assistant coach for the Los Angeles Lakers in the 2000s.
The system's most important feature is the sideline triangle created by the center, who stands at the low post, the forward at the wing, and the guard at the corner. The team's other guard stands at the top of the key and the weak-side forward is on the weak-side high post — together forming the "two-man game." The goal of the offense is to fill those five spots, which creates good spacing between players and allows each one to pass to four teammates. Every pass and cut has a purpose and everything is dictated by the defense.
The offense starts when a guard passes to the wing and cuts to the strong-side corner. The triangle is created from a post player on the strong-side block, the strong-side corner, and the extended strong-side wing, who gains possession on the first pass. The desired initial option in the offense is to pass to the strong-side post player on the block who is in good scoring position. From there the player has the options of looking to score or pass to one of the perimeter players who are exchanging from strong-side corner and wing, a dive cut down the lane, or the opposite wing flashing to the top of the key which initiates another common option known as the "pinch post."
If a pass to the block is not possible, the second option is either to pass to the weak-side guard who flashes top of the key from the weak-side wing position or passing to the strong-side corner. If the ball is passed to the corner the options are either shoot, pass to the strong-side block, or pick and pop with the wing. If it is passed to the weak-side guard it initiates the "pinch post" option. There are two options. The first and most common is to pass to the weak-side forward who flashes to the elbow (corner of the key at the free throw line) to receive the pass. When he does the options are a rub handoff, back door cut by guard without the ball, post up of the guard on a smaller player, or face up and attack. The second option is a pick and roll with the forward. The advantage to the first option is there are so many weapons to attack the defense it opens up a lot of freedom and ability to score effectively. The advantage on the second option is that the player who has the ball and uses the screen now has the entire side of the floor to work with to go one on one. Meanwhile, on the other side, the wing sets a screen for the corner guard on the triangle split. If the hand-off is not available, the forward or the guard can pass to the corner guard coming off the screen. If the defense overplays or expects the split, both the wing and the corner guard can back cut to the basket. During all of this time the original strong-side block player is able to establish position for an easy shot while the defender is lured by all of the movement and cutting by the other players.
If the strong-side wing-to-guard pass is not possible, the third option is for the weak-side forward to flash to the strong-side elbow, take the pass, and cut to the basket on the trademark backdoor play of the offense. Meanwhile, the wing and corner guard exchange on a down screen. The forward with the ball can pass to the cutting guard or to the corner guard coming off the wing's screen. If nothing's available, he can shoot the basketball himself.
The offense also has a variety of options if there's heavy pressure from the defense. If the initial wing-pass by the guard isn't available, the triangle can be created on the other side by passing to the other guard, who then passes to the weak-side forward (who then becomes the strong-side wing). The guard, who initially had the ball, then cuts to the other corner. The center or the pressured wing can flash to the opposite post. If the guard-to-guard pass is not available, the weak-side forward can make a similar flash cut that was mentioned earlier. That also creates many cutting opportunities. If there is heavy pressure on everybody, the center can release the pressure by cutting to the high post for a pass by the ball-handling guard. That would also create space for possible cuts.
Head coach Phil Jackson, with help from assistant coach Tex Winter, utilized the triangle offense to great success. The Chicago Bulls under Jackson won six NBA titles in the 1990s playing in the triangle. His first 3 title-winning teams in Chicago featured Hall of Famers Michael Jordan and Scottie Pippen. Jackson's later 3 titles with the Bulls came with Jordan, Pippen, and fellow Hall of Famer Dennis Rodman. Jackson's Los Angeles Lakers later won five championships employing the triangle. His first 3 Lakers championship squads fielded superstars Shaquille O'Neal and Kobe Bryant, while his last 2 title teams saw him pair Bryant with fellow All-Star Pau Gasol. Jackson coached the Bulls from 1989-1998. He next served as the head coach of the Lakers twice, first from 1999-2004, and then from 2005-2011.
When Jackson became the head coach of the Chicago Bulls before the start of the 1989-1990 NBA season, he and Winter originally installed the triangle offense in an attempt to subvert the Jordan Rules strategy employed by their Eastern Conference rivals, the Detroit Pistons. The "Jordan Rules" was a defensive strategy which consisted of solely targeting Michael Jordan. Jordan had already established himself as an elite NBA superstar by single-handedly turning Chicago into a playoff contender. However, by sharing responsibility rather than shouldering it, he continued to blossom as a great all-around basketball player. More importantly, the Bulls also improved notably as a team, finishing with a 55-27 record. The Bulls fell to the Pistons in 7 games in the 1990 Eastern Conference Finals. The following year, however, Chicago finished the 1990-1991 NBA season with a then-franchise best 61-21 record, good for first place in the East, then swept the archrival Pistons 4-0 in the 1991 Eastern Conference Finals. The Bulls then defeated the Los Angeles Lakers in the NBA Finals, 4 games to 1. Michael Jordan won his second NBA Most Valuable Player Award that season and finally won his first championship.
The triangle offense was also used effectively by the Bulls during the 1995-96 season. Jordan, back at the helm for the team in his first full season since coming out of retirement, won his 4th NBA MVP award (He won his 5th MVP 2 years later). He also finished the season as the league's leading scorer, the 8th time he had achieved this honor (He won 2 more scoring titles in 1997 and 1998, bringing his final total to 10 scoring titles and 6 championships). Chicago functioned almost perfectly as a team as well. Behind the playmaking abilities of Jordan and Scottie Pippen, coupled with Dennis Rodman's defense and rebounding, the Bulls recorded an NBA-record 72-10 season en route to what was then their 4th NBA championship. Jackson won his first (and only) NBA Coach of the Year Award for his efforts during his team's record-breaking season. Overall, the Bulls won 6 NBA titles during the 1990s, and are considered to be one of the NBA's greatest dynasties.
Jackson installed the triangle offense again when he started coaching the Lakers in the 1999-2000 season, with Winter serving as an assistant on his staff. This time, Shaquille O'Neal and Kobe Bryant served as the focal points of L.A.'s offense. O'Neal won the NBA MVP Award in 2000, and Bryant rose to prominence as one of the NBA's newest stars. The Lakers became an elite NBA team during Jackson's first term as their coach, making 4 NBA Finals appearances in 5 years and winning 3 straight NBA titles from 2000-2002. At the end of the 2004 Finals, which resulted in losing to the Detroit Pistons, his contract was not renewed. He did, however, come back to the Lakers as head coach starting in the 2005-2006 season. Despite the presence of Bryant as the centerpiece of the team, the Lakers couldn't get past the first round of the playoffs in 2006 or 2007. But when L.A. acquired versatile forward Pau Gasol from the Memphis Grizzlies via trade in the middle of the 2008 season, their fortunes were soon reversed for the better. With Bryant and Gasol running the triangle offense, the Lakers made the NBA Finals 3 straight times, capturing championships in 2009 & 2010. In the process, Jackson surpassed Red Auerbach's record of most titles won by an NBA coach.
When Phil Jackson retired as a head coach at the end of the 2010-2011 season, he had amassed 11 NBA titles: 6 with the Bulls, 5 with the Lakers. In addition, he finished his career with over 1000 victories over the course of his Hall of Fame coaching career, regular season and playoff games combined. Tex Winter earned induction into the Hall of Fame in 2011 for his contributions to basketball involving the triangle offense. He was an assistant on the first 9 of Jackson's 11 championship teams and served as a consultant to the team on the other two.
- Diagrams involving the triangle offense at ESPN.com
- Explanation and flash animation for the Triangle offense on NBA.com