Signing Frazier could make the Braves a playoff team with some luck in the SP department, which I think we could get.
There would be a lot of "if":
-Freeman stays healthy all year - more wins than last year
-Swanson isn't garbage 80% of the year - more wins
-Teheran is better
-Acuna out-WARs Kemp when he comes up up (fairly safe bet)
-Backend of the rotation improves a lot (McCarthy, Newcomb)
-Bullpen improves
I don't think any of those things are by any means outlandish.
Albies will be a massive upgrade at 2B. Frazier would be a massive upgrade at 3B. Acuna big upgrade over Kemp.
Is there a position that, barring injury, will decline other than probably catcher?