If Miami's current offer is Herro, Jaquez, Jovic along with their FRPs in 2024, 28 and 30 plus a swap or swaps then I don't think Dame or his camp would want the Heat to give up more. I think any other pieces for instance Martin, hurts Dame's chances at a chip.
I don't know if the Heat have offered all of that at this time but it's possible they could be offering it and Joe is saying that's not enough we need Martin too and in that case I really doubt Dame's camp would be pressuring the Heat to give into Cronin's demand. Herro or whatever he would bring from a third team, Martin or his return from a third or fourth team, Jovic, Jaquez and three unprotected firsts one of which would almost be guaranteed to be late in the first round probably isn't even fair value for Dame considering what we already have seen Durant go for (adjusting for the fact that Durant is obviously the superior player) and what we saw the Jazz get for lesser players even if they are younger.
I guess what I'm saying is maybe Joe is just holding really firm and saying if you're not giving me Jimmy or Bam, I'm taking everything else that isn't nailed down because we won't be getting fair value, so I'm not budging. It's also possible that Miami is really really low balling us holding out on doing what it takes to regain trade access to the 2024 FRP and/or trying to make us choose between their underwhelming prospects (Jaquez and Jovic) and Joe would take the offer I laid out in the first sentence of this post. Who the fuck knows?