The Pistons have kept an open door with current and former players, and will explore those options next week with Jose Calderon, Will Bynum and Chauncey Billups.

Calderon turned down a contract from the Sacramento Kings earlier Thursday, citing concerns about a long-term rebuilding project, according to Yahoo Sports.

While it appears unrealistic the Pistons could bring back both Calderon and Bynum, the Pistons will explore both options and it isn't necessarily an either/or proposition.

Bynum has received interest from the Knicks and Chicago Bulls, and wants to be on a team that has a chance to win.