A lot of.. um... Detroit Pistons players being discussed here.
Bad, rebuilding teams tend to be a good place to pick off useful veteran players who don't fit said teams long terms plans.
Jackson has been discussed here this year. Nick Agneta pointed out he's young, and cost controlled, so they may wish to keep him. Very possible.
But Ellington is a strong candidate to be traded before the deadline. Lots of teams could use his shooting. Logical for the Pistons to extract a pick or young player for him.