Making good in free agency is critical for all NBA contenders. The following slideshow features the best free agent signs by all 30 organizations. Some led to championship success while others helped both the team and player.
Mutombo signed a five-year, $55 million contract to leave Denver and join the Hawks in 1996. He won two Defensive Player of the Year Awards with Atlanta, averaging 12.6 rebounds and 3.2 blocks per game in his four-plus seasons.
Posey signed a two-year contract with the Celtics in 2007 and was a key piece in their 2008 championship season. He averaged 7.4 points per game off the bench in his one season with Boston. Al Horford and Gordon Hayward have a chance to surpass Posey, particularly given his short tenure in Boston.
Gilliam signed with the Nets at age 29 in 1993 and was solid for three seasons. He helped New Jersey with 14.9 points and 7.5 rebounds per game, serving as both a role player and the starting power forward.
Jefferson joined the Bobcats on a three-year, $40.5 contract in 2013. The center's three-year stay in Charlotte wasn't without injury, but he averaged 17.5 points and 8.9 rebounds per game.
The mercurial Rodman played three seasons in Chicago alongside Michael Jordan and Scottie Pippen after signing in 1995. He led the NBA in rebounds during all three of those seasons, and the Bulls won three championships in a row. The 1995-96 squad won a record-breaking 72 games during the regular season, which was broken in 2015-16 by the Golden State Warriors' 73 wins.
All was forgiven in Cleveland when James announced that he would be coming home in 2014 after winning two championships in Miami. Over three seasons during his second stint in Cleveland, James has made three NBA Finals and ended the city's championship drought in 2016.
Davis signed with the expansion Mavericks in 1980 and had a 12-year stay at point guard. He averaged 8.6 points and 5.1 assists per game, and he was a key contributor in some of their more dire years.
Millsap came to Denver last offseason with a reported three-year, $90 million contract. He made four consecutive All-Star appearances in Atlanta and is arguably the best player Denver has ever acquired in free agency.
Billups became Detroit's starting point guard in 2002 after signing a six-year, $35 million contract. He helped lead the Pistons to an NBA championship in 2004 and a Finals appearance the following year.
Durant shocked the basketball world when he left the Thunder to sign with the elite Warriors in 2016. Coming off a 73-win regular season, the Warriors returned to the Finals in 2017 after a disappointing loss against the Cavs in 2016. Durant helped the Warriors win their second championship in three years and won the Finals MVP, then made it two straight by again winning Final MVP in a sweep of the Cavs in 2018.
Ariza went back with the Rockets after stints in New Orleans and Washington. It was his first stint in 2009-10 that looked like such a smart and valuable singing, becoming a starter for the Rockets and averaging 14.9 points and 5.6 rebounds per game.
West came over to the Pacers on a two-year deal in 2011, and he was a strong presence at power forward for four seasons. During those four seasons, West averaged 14 points and seven rebounds per game.
Jordan never actually left the Clippers, but the events surrounding his re-signing in 2015 are a feather in the Clips' caps. He verbally agreed to sign with Dallas before changing his mind and signing a four-year, $88 million contract with the Clippers. Jordan made his first All-Star appearance in 2016-17.
O'Neal had a falling out with Orlando and signed a seven-year, $121 million contract to go west in 1996. Arguably the NBA's most dominant big man ever, Shaq played eight seasons with the Lakers. He won one regular-season MVP, three Finals MVP Awards and three NBA championships.
Allen has gone from support player in Boston to starter in Memphis after signing in 2010. The guard has averaged 8.9 points per game and flashed his excellent defense with 1.7 steals per game.
LeBron jerseys were set ablaze in Cleveland after James "took his talents to South Beach" in 2010. He announced The Decision live on television, leaving his home state of Ohio. Joining Dwyane Wade and Chris Bosh, James appeared in four consecutive NBA Finals and won two championships with the Heat.
When Monroe signed a three-year, $50 million contract in 2015, it looked like a solid move. He had a strong first season before being relegated to the bench last year due to Milwaukee's depth inside, but Monroe has still averaged 13.5 points and 7.7 rebounds per game through two seasons.
Despite the secondary results of the Smith signing that included a large fine and loss of draft picks after the Wolves were hit with salary cap-tampering, the signing did have short-term impact for Minnesota in 1998. Pairing with Kevin Garnett, Smith averaged 11.3 points and 6.9 rebounds as a dynamic big man duo over two seasons.
New Orleans recently re-signed Holiday to a huge five-year, $126 million contract after four seasons with the organization. The point guard has been a key player for the team, averaging 16.5 points and 6.7 assists per game, and he took his game to the next level in the 2018 postseason.
The combination of Starks and Patrick Ewing will forever be remembered by Knicks fans, despite their inability to win an NBA championship. Starks signed with the Knicks after a tryout in 1990 after stints in the CBA and WBL. He played nine seasons in New York, averaging 14.1 points per game and making one All-Star appearance.
Williams left Golden State for Seattle in 1977. He was a star point guard for the SuperSonics, leading them to a championship in 1979.
A former champion in Chicago, Grant was offered big money to help Shaquille O'Neal and Penny Hardaway in Orlando in 1994. The power forward immediately helped lead the Magic to the NBA Finals in 1995 before Shaq departed one year later.
Erving was sold to the Sixers in 1976 for $3 million after a territorial disagreement between the Nets and Knicks. Philadelphia made the NBA Finals in Erving's first season with the team, and he was an All-Star in all 11 of his seasons. The 76ers also won the NBA Finals in 1983.
Nash left Dallas to rejoin Phoenix in 2004, signing a six-year, $63 million contract that Mavericks owner Mark Cuban didn't match. He proceeded to make six All-Star appearances in nine seasons with the Suns and won two MVP Awards.
Anderson's career in Portland didn't even span two full seasons, but he was excellent at point guard when he did play. Signing in 1996, Anderson averaged 15.8 points and 6.5 assists per game.
Divac helped lead the Kings to stardom after signing in 1998 and even made the Western Conference Finals in 2002. Over his six seasons in Sacramento, the center averaged 11.4 points and 7.8 rebounds per game.
Big Shot Rob already had five NBA championships under his belt when he joined the Spurs in 2003. A huge Finals showing in 2005 helped the Spurs win Horry's sixth championship, and he won his seventh ring with San Antonio in 2007.
Calderon started his NBA career with the Raptors in 2005 and re-signed in 2008. While never making an All-Star team, Calderon was an outstanding point guard during his Raptors career with 10 points and 7.2 assists per game.
Cleveland supposedly had an agreement with Boozer on a six-year, $39 million contract. To sign the deal, the Cavs let Boozer out of his current contract. In the meantime, Utah swooped in to sign Boozer for six years, $70 million in 2004. He made two All-Star appearances with the Jazz and averaged more than 19 points per game over six seasons.
Arenas was yet another example of a great player escaping the Warriors. He left for Washington after only two seasons, signing a six-year, $60 million contract in 2003. He became an elite player early in his Wizards career, averaging 27.7 points and 5.7 assists over three seasons from 2004-07.
Seth Trachtman is a fantasy sports expert and diehard Kansas City Chiefs fan. He doesn't often Tweet, but when he does, you can find him on Twitter @sethroto.
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