I see it this way, we are 3 years into what was to be a 5 year rebuild, did it go exactly as hoped for 2017? No, but the mistakes made were the signing of 3 free agent pitchers to start the year (2 of them way to old). Yes Blair and Wisler were/are disappointments, as for Swanson I am going to give him a little slack as the pressure put upon him to start the year would have made it tough on anyone. He was the "odds on favorite" for rookie of the year, he was the new face of the Braves and on and on. A lot to handle so early in his career. That said he has been ok since his return from the minors, I think he will be just fine.
I am excited by Gohara, Newcomb, and I still like Fried. Sims I am not sure, but he might be a long man in the pen with spot starts. As for Teheran, I feel he will be traded this off season, and Folty needs to figure out how to control his emotions on the mound, he has the stuff, just not the head. He reminds me of Strausburg in that manner, both seem to pout on the mound at times. Still I say it takes a minimum of a year and a half for a pitcher to finally get it or not, So time table is running on some.
As for the pen, I love what I see in Freeman, Winkler, Ramirez, and Minter, I am not however sold on Viz as a permanent closer, not sure why on the last one, but I am not. Would love to see our boy come home in 2019 (Kimbrel)
Sometime next year I figure we may see Soroka and Allard in Atlanta, I am excited by what those 2 have been doing in the minors. And then of course there is Acuna, hard NOT to be impressed by what he has shown.
If Acuna pushes making the team in 2018, and you can't trade one of Kemp/Markakis, then the answer is to Platoon Kemp/Markakis in LF put Acuna in right. 3B I am not sold on Camargo, or Ruiz. But we might be stuck with a platoon there as well, as I see no one I would be willing to pay big money to come in at 3B.
As for 2018, this is the year I really hope to see big improvement, in other words a record above .500, I never thought we would be a playoff team until 2019 anyway. Once 2020 hits I see a team that will compete year in and year out for some time. WHat I do not want to see is making a move for a less than ace pitcher, and there just are not many of those available, Fulmer and Archer are not aces, now a Bumgardner ....