More information on the Triangle Offense.
Summary : when Phil first used it with the Chicago Bulls, it took until the FOLLOWING YEAR to pay dividends. Or, to say it another way, it took them more than one full season to get any good at it.
Head coach Phil Jackson, with help from assistant coach Tex Winter, has utilized the triangle offense to great success. The Chicago Bulls under Jackson won six NBA titles in the 1990s playing in the triangle. Jackson's Los Angeles Lakers later won four championships employing the triangle.
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 dramatically as a team, finishing with a 55-27 record. The Bulls fell to the Pistons in 7 games in the 1990 Eastern Conference Finals. Fortunately, the triangle offense paid huge dividends the following season (along with a sharper focus on teamwork). 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 Bulls would go on to become one of the NBA's greatest dynasties, winning 6 NBA championships during the 1990s, and Jordan went on to be one of the league's greatest players.