Look at it this way.
If you're tryin to sign a Max FA, and he is scared of old Bron + kids.
OR
Old Bron + AD
There's your answer. If Kawhi, Klay, Kyrie, whomever, doesn't want to sign with Old Bron and kids, but would consider Old Bron and AD, you bring in AD, get the 3rd Max, TRY to keep Zo in the process for at least a smidge of talent/depth beyond ring chasers, and go from there.
If you can get a Kawhi without giving everyone up, then yeah, go for that, no doubt. Then YOU hold all the cards with the Pels and they can take it or leave it. (something like BI + 4 + Hart and 2 future picks, and we keep Zo and Kuz)