Howard agreed to terms with the Dallas Mavericks on October 30, 2007, but was not able to officially sign until the next day, when he cleared waivers.
Terms of the deal were not disclosed publicly.
During the 2007–08 season, he played in 50 games and made no starts, while averaging 1.1 points and 1.6 rebounds.
In his limited role he never played more than 18 minutes and had season-highs of seven rebounds and six points.
 The 2007–08 Mavericks were 51–31 under coach Johnson and lost in the first round of the 2008 NBA Playoffs to the New Orleans Hornets four games to one.
In the playoffs, Howard only appeared for a total of 11 minutes in three games.
This was the first season in Howard's career in which he did not start in a single game.
Howard agreed to terms with the Dallas Mavericks on October 30, 2007, but was not able to officially sign until the next day, when he cleared waivers. Terms of the deal were not disclosed publicly. During the 2007–08 season, he played in 50 games and made no starts, while averaging 1.1 points and 1.6 rebounds. In his limited role he never played more than 18 minutes and had season-highs of seven rebounds and six points.  The 2007–08 Mavericks were 51–31 under coach Johnson and lost in the first round of the 2008 NBA Playoffs to the New Orleans Hornets four games to one. In the playoffs, Howard only appeared for a total of 11 minutes in three games. This was the first season in Howard's career in which he did not start in a single game.
Juwan Howard