Lacey was drafted by the Cincinnati Royals in 1971 and played for the team until 1975. During his time with the Royals, he averaged double-digit points and rebounds per game. He was then traded to the Cleveland Cavaliers in 1975 and played for the team until 1979. During his time with the Cavaliers, he was named to the All-Star team four times and was named to the All-Defensive First Team three times.
In 1979, Lacey was traded to the New Jersey Nets and played for the team until 1983. During his time with the Nets, he was named to the All-Star team once and was named to the All-Defensive First Team once. He was also named the NBA's Most Improved Player in 1981.
Throughout his career, Lacey was known for his defensive prowess and rebounding ability. He was a five-time NBA All-Star and was named to the All-Defensive First Team four times. He was also named the NBA's Most Improved Player in 1981. He was an integral part of the teams he played for and was an important contributor to the success of the teams he played for.
🏀