Here is what the 2018 roster would likely look like if no players changed teams (with half-assed arbitration estimates included):
1 C Flowers $4.00
2 1B Freeman $21.00
3 2B Albies $0.55
4 3B Ruiz $0.55
5 SS Swanson $0.55
6 LF Kemp $19.25
7 CF Inciarte $4.70
8 RF Markakis $11.00
9 SP1 Teheran $8.00
10 SP2 Folty $4.00
11 SP3 Dickey $8.00
12 SP4 Newk $0.55
13 SP5 Fried $0.55
14 BN1 M Adams $4.00
15 BN2 Camargo $0.55
16 BN3 Santana $1.00
17 BN4 L Adams $0.55
18 BN5 Sanchez $0.55
19 BP1 JJ $5.00
20 BP2 Viz $3.00
21 BP3 Freeman $0.55
22 BP4 Ramirez $0.55
23 BP5 Minter $0.55
24 BP6 Winkler $1.00
25 BP7 Wisler $0.55
Total $100.55
Cot's had the Braves 2017 opening day payroll at $122M, which I'm pretty sure did not include the $2.5M per year the Braves are getting from LA/SD. We can probably estimate the Braves will have a 2018 opening day payroll of about $125M...quite possibly less.
So how do the Braves improve that roster with $25M?
The most any team is likely to assume for Kemp is $10M per year. The Braves can probably give Markakis away and save $11M. They could also decline Dickey's option and save another $7.5M.
That leaves the Braves in a best case scenario with ~$53.5M to spend. With that cash, the Braves will need at least 1 SP, and at least one corner OF to play alongside Inciarte and Acuna. To have any chance at .500, the Braves will also need a 2nd SP, and an upgrade at 3B.
I would actually suggest the Braves largely leave the roster unchanged going into 2018. The Braves aren't going to be good no matter what, so there is no sense in shackling themselves to another bad contract.
Maybe ditch Dickey and upgrade that spot in the rotation with a FA on a 1-2 year deal, but for most part let the young SPs prove whether they belong in the rotation. Take a look at what Ruiz and Camargo can do at 3B. Try to unload Kemp or Markakis, but don't go crazy trying to shed those contracts. See if Lane Adams is the solution to the 4th OFer question. Try to extend Flowers 1-2 years, even if that means giving him a raise in 2018. Sign an actual backup catcher.
Then start replacing crappy guys with younger guys. Newk or Fried replaced with Gohara. Kemp or Markakis replaced with Acuna. Later, Newk or Fried replaced with Allard/Soroka/Wright.