Has DJ completely checked out? He's putting up fat Boris numbers now - look at his last five games:
24 minutes per game
19% FG (5-26)
11% 3FG (1-9)
Playing more won't increase his trade value, he's destroying his own value. If his knee or toe is bothering him, he needs to shut it down for awhile. Or if it's his personal issue with playing for the team, then that's not being a professional, and we should say his knee is hurt and shut him down for the season anyway.
He was 0-5, 0-4, and 0-2 in three of those games, all while playing over 20 minutes. That shows to me either not caring, or a complete lack of aggressiveness. Both are a problem competitively to me. If its injuries, don't be a hero; if it's not, I don't know what to say.
Kemba should be starting at this point, but I do understand we'd try to keep DJs value as high as possible. I just don't think trotting him out there like he is helps that, and he should go ahead and be deactivated due to "injury."