If you want to ship out players for bad D, I would in no certain order send
Jet, Bass, Wilcox, Jeff Green (although JG played has played better D as of late more aggressive, nice blocks and steals)
For all of the instant O that Jet provides he gives up a lot on D. He is undersized, and gets beat a lot. Bass the same, but more in his rotations. Bass's on ball D isn't that bad, but he is terrible on rotations.