ATL isn’t going to be this bad for much longer. I really like the young core of their team, especially since they’ll be getting another top 5 pick to add to it. They should target Wiseman or Edwards - they don’t need another PG alongside Young, and I don’t think Ball would be a good fit there.
Celts probably want to keep Kemba for this next 4-5 years anyways, so little chance of that happening.