Why Does It Makes Sense for The Three Teams:
### SACRAMENTO KINGS: Sacramento Kings new GM Scott Perry is a big fan of Jrue Holiday. Who wouldn't want Jrue? He is a winner, he wins everywhere he goes. That's what the Kings need. They need a point guard that stabilizes their offense, a defensive leader, and most importantly, someone who knows what it takes to be a winner— Jrue is all that. The only issue with him though is his declining performance due to age, that's why they aren't giving up anything valuable here besides Devin Carter, who is not that much needed because of Keon Ellis' emergence and Monk and would be, Jrue piling up the backcourt. DeMar doesn't have that much value either, since he doesn't fit on any team besides Heat or maybe Clippers. They also get Hauser in this deal, a deadeye shooter on a friendly 4-year deal which they desperately needed last season.
### BOSTON CELTICS: Boston Celtics are a second apron team and if they don't want to pay penalties, then trading Jrue is inevitable. With Tatum out, their championship aspirations next season seems to be a blur. In this trade, they acquire Carter and Jacquez here along with trading up to the draft, which is a BIG return for Jrue's value. They also get Duncan Robinson, an expiring contract. Boston get younger here as they try to avoid paying big money but also develop youth who could be good role players for a perennial playoff team next season.
### MIAMI HEAT: Miami Heat are desperate of a change and if they fail to acquire KD (who requires a massive haul to get), DeMar is a decent fallback option, as you don't have to give up much to get him. DeMar plays similar to Jimmy, a playmaking 3-level scoring forward who gets to their spots easily. Miami, as shown in the playoffs, missed Jimmy's presence at the offensive end as when Herro struggled, no one could anchor the offense. DeMar provides that. He could take the pressure off Herro with his scoring and playmaking skills. Along with resigning Davion, this team should be a decent playoff team. Sure, it's still not a contending team, but this team is already a ton better than the last. This is step one on building a contending team, as well as banking on Herro and Bam to take the next step, as well as Ware and Jovic who they have high visions on, to develop and be much better than their rookie season.