The Posse took part in a tag team battle royal for the number one contenderships to the Tag Team Championship at Armageddon. They gained an advantage by switching places with the third wrestler behind the referees' backs, thus enabling them to outnumber the other teams three to two. Despite this advantage, they failed to win.
In early 2000, the Posse repeatedly tried to defeat Crash Holly for the Hardcore Championship, attacking the champion in unlikely venues such as an airport, a circus, and his hotel room. At WrestleMania 2000 on April 2, the trio took part in a hardcore battle royal for the title. During the match, each member would briefly hold the title, although Hardcore Holly ultimately won the match and left as the official champion.
On an episode of Sunday Night Heat later that year, Edge and Christian briefly became the managers of the Mean Street Posse. They accompanied them to ringside for the duration of their WWF World Tag Team Championship title match with the Hardy Boyz, assisting the Posse with the proviso that they would receive a title shot if the Posse was to win. The Hardy Boyz thwarted the interference of Edge and Christian, however, and retained their titles. Gas and the remainder of the Posse were released by the WWF in 2001.