8. Dirk Nowitzki & Monta Ellis
The next duo on the list may have been temporary, but they were an exciting bunch to watch.
Two years after winning the championship, the Dallas Mavericks were still trying to find pieces to pair alongside Dirk Nowitzki. During the 2013-14 season, Dallas signed Monta Ellis to a three-year contract.
In his first season with the Mavs, Ellis averaged 19 points per game and shot 45 percent from the field. He played a role in helping Dallas reach the playoffs after missing the year before. Nowitzki also helped out, as he averaged above 21 points per game.
That season, the Mavs finished as the eight seed in the West. The team faced off against the San Antonio Spurs in the first round. Ellis and Nowitzki pushed the Spurs to a game seven, thanks to the help of Vince Carter.
Dallas later traded for Rajon Rondo the following season, hoping to form a dynamic trio with Dirk and Ellis. The trade proved to be a failure, as Rondo left right after the season.
Ellis also left the following season, opting out of the final year of his contract.
If only Dirk had been 10 years younger, him and Ellis might have been one of the top duos in the league.