The New Orleans Pelicans, Detroit Pistons and Sacramento Kings are three of the most active buyers on the trade market.
The typical start of trade season is Dec. 15 when most players who signed deals in the offseason are eligible to be dealt.
The Pelicans are feeling pressure to build around Anthony Davis before he become eligible to sign a supermax extension this offseason.
Tom Gores wants the Pistons to return to the playoffs and they own their first round pick.
The Kings can offer the large expiring contracts of Zach Randolph and Iman Shumpert to upgrade their team.