Why would the Braves take back Hosmer, I wondered.
Mainly - in the wildly crazy trade we were discussing - because Preller would probably need to get him completely out of their clubhouse if he were to make a deal for Freeman. The assumption is that it would potentially make it easier for both GMs to try to sell in the clubhouse.
Hosmer is their Freeman without the production - he's the guy they started their rebuild around. They have to ignore the fact he was a bad choice - Preller can't take the signing back. He's a big part of their clubhouse even if he's not producing, and some of the players might not love the fact that you're trading their unnamed "Captain" when they're winning even though he's a meh guy. They'd probably need to move his money to have any chance to extend Freddie, and even if they didn't they probably wouldn't see him as a DH option as they try to contend over the next few years.
From Atlanta's end, you don't lose that clubhouse leader presence even though you lose a substantial amount of production. If you get Abrams in the deal though, he takes over at SS next season and you take the $20 million you're not paying Freeman and Dansby and go sign Bryant to play LF (or 3B if you move Riley). AA's line to try to sell it to the players is "Freddie wanted more than Bryant, so we got you a 'winner' like Hosmer PLUS brought in Bryant and Abrams for the rest of the time we have Acuna and Ozzie."
Certainly not a deal that the vast majority of people would make, but if Preller's stupid enough to make that kind of all-in move and go for it he's probably going to have to pair one of Gore/Abrams/Campusano/Hassell with Hosmer to get out from under Hosmer. As far out there as all that is, it actually kinda fits for the Braves when you think about it. Abrams is the hometown guy to replace Dansby at SS so the fans don't whine (as much), but he's cheap, better, AND becomes your leadoff guy so you make Acuna more of a producer/3-hole hitter to lessen the blow of losing Freeman. Signing Bryant for 5 years instead of Freeman gives you a lot more flexibility since he can play all over the place, and you still have a LH-hitting 1B (albeit a marginal one) who is your rah-rah guy. At that point, you could make Waters your CF instead of Pache to give you a fourth LH bat in the lineup (counting Ozzie and with Harris and Franklin coming). You'd control everybody - including Fried, Anderson, Soroka, Ynoa, Davidson, Muller, Touki, Strider, Shuster, and Cusick through 2025.