Miami's Tyler Johnson is intriguing, and I'm not sure they are going to have the funds to resign him since they already have big contracts for Bosh and Dragic on the books, they want to resign Whiteside and Wade is going to get payed (and his cap hold is gigantic), they also lack depth at center so a deal of:
KK and Marco/DC (preferably Marco) for
Tyler, Birdman (expiring) and McRoberts might work.
McRoberts was mostly hurt and have 3 years 5 million each contract, but when healthy is a nice big to have with great playmaking.
If Charlotte drifts away from the playoff picture in the east Batum might be avialable for a package of Ben and Marco/KK (or DC and filler), I'm not sure how I feel about this type of move.
If you are all-in for win-now it can be great (Rondo-Batum-Gay-WCS-DMC looks great on paper) but he is on an expiring contract and an unristricted FA.