The rebuild
2013-14: RHP Aaron Harang
The Braves biggest free agent signing from the 2013-14 offseason is arguably a toss-up between Harang and Ervin Santana, but the selection here goes to the right-hander. In what was his lone season in Atlanta, Santana posted a 12-12 record with a 3.57 ERA and a 161:71 K:BB ratio across 204.1 IP, which was also 33 starts.
2014-15: OF Nick Markakis
The 2014-15 offseason was one of the most active for the Atlanta Braves from 2010-24, as the club also signed additional free agents such as Jason Grilli, Jim Johnson, A.J. Pierzynski, Kelly Johnson, and Jonny Gomes. However, the top signing of that group was Markakis, as the veteran outfielder went on to slash a combined .283/.357/.402 with 48 HR, 388 RBI, and five SB across 789 games.
2015-16: RHP Jim Johnson
Atlanta was also active in free agency during the 2015-16 offseason, with one of the biggest moves being bringing back Johnson over additional signings such as Tyler Flowers, Bud Norris, and Gordon Beckham. In 2016, Johnson would post a 2-6 record with a 3.06 ERA, a 68:20 K:BB ratio, and 20 saves across 64.2 IP.
2016-17: C Kurt Suzuki
In an offseason where the Braves signed a pair of veteran pitchers in R.A. Dickey and Bartolo Colon, the biggest free agent move ended up being signing Suzuki. Across 81 games in 2017, Suzuki would slash a combined .283/.351/.536 with a career-high 19 HR and 50 RBI.