At this point Brad still needs to give JB that supermax right? I mean an unsigned JB will have a really low trade value.
I'm fine giving them both supermaxes (JT + JB). But they can definitely improve the roster and cut some costs by trading Smart. Brogdon, White and Davison (or another FA/small trade pickup) can be a solid trio of guards to have over the next few years, but they'll also need another big man to go along with 37 year old Horford + injury prone Timelord
But I just don't see how you can run it back with the same trio (JT, JB, Smart). Tatum is the alpha and deserves to stay. Between the other two though, someone has to go. Maybe Jaylen makes that decision easier and demands a trade? Hope not but we'll see