I could live with cutting Luke. Seems like a great kid and may have some potential, but this team is in win-now mode and he can't cover the 3's we would need him too, nor do I trust him defending PF's and rebounding as much as I would 'Sheed.
Or, if we decide 'Quis is unfit to return, we can simply cut him, as he is a FA after this year. That would truly be a waste of a roster spot, as keeping him in street clothes until July or cutting him would have the same effect. But let's wait and see what happens with his diagnosis first.
We could also do a trade. There are many options DA could pursue, but whether he wants to blow up the unity and chemistry is the question.