He was promoted from assistant to head coach of the Detroit Pistons on an interim basis upon the dismissal of Dick Vitale on November 8, 1979.[3] His first game at the helm was a 106–98 Pistons win over the Philadelphia 76ers at the Pontiac Silverdome the following night on November 9.[4]
Adubato replaced Brian Hill halfway through the 1996–97 season and guided the Magic to a 21–12 record and made their fourth consecutive playoff appearance. The Magic then nearly upset Pat Riley's Miami Heat in the playoffs with the help of spectacular play from Penny Hardaway, but ultimately lost the series 3–2.
In 1999, Adubato became head coach for the New York Liberty of the Women's National Basketball Association, making his WNBA debut on June 10, 1999, when he guided the Liberty to an 87–60 victory over the defending Eastern Conference champion Cleveland Rockers. With the Liberty posting impressive attendance figures for the third straight season, Madison Square Garden played host to the first-ever WNBA All-Star Game - a sellout (18,649) - on July 14, 1999. Four Liberty players were selected to the Eastern Conference squad: Rebecca Lobo, Teresa Weatherspoon, Kym Hampton, and Vickie Johnson.
With Adubato at the helm, the Liberty posted an overall mark of 18-14 and won its first Eastern Conference title. After defeating Charlotte in the first round of the playoffs, the team faced a rematch with the defending WNBA champion Houston Comets. Despite falling short of the title, the series was pushed to a third game when Weatherspoon made the most famous shot in WNBA history—a half-court, buzzer-beating shot that won Game 2 before a stunned Houston squad and Compaq Center crowd.
Under Adubato, the Liberty went to the finals three out of four seasons and won the Eastern Conference regular-season championship three times.
Adubato took over as coach of the Washington Mystics, but left the Mystics on June 1, 2007, reportedly upset over his team's 0–4 start to the season, a number of recent transactions, and his contract status.
During his NBA coaching career, Adubato replaced Dick Vitale as head coach of the Detroit Pistons after 12 games of the 1979–80 season. He later was head coach of the Dallas Mavericks for 264 games between 1989 and 1992.
Adubato currently serves as the radio color analyst for the Orlando Magic.