Rondo averaged 9.2 points and 8.0 assists for the Lakers last season.
The Davis signing took place on the first day National Basketball Association teams were allowed to officially sign free agents to contracts that were negotiated over the past week. He started 62 of the 75 games he played in. James also missed the postseason for the first time since his sophomore year in the National Basketball Association.
A four-time all-star, Cousins has played in 565 career games for Sacramento, New Orleans, and Golden State, averaging 21.2 points and 10.9 rebounds.
The 28-year-old signed a one-year deal with the Golden State Warriors last season but didn't appear in a contest until the end of January. Wojnarowski said Green, who spent the past season with Leonard and the Raptors, will make $30 million.