Lourdes Gurriel Jr.
The Braves have the luxury of an outstanding lineup and for the most part locked-in defensive configuration, but if anything might still be missing, it's a stellar left fielder. Jarred Kelenic came over from the Mariners, but is still expected to split time there with Vaughn Grissom. It's possible that the Braves specifically targeted Kelenic as someone who wouldn't lock down the position on an everyday basis, allowing the team to develop Grissom more; if that wasn't the case, then they might've considered Lourdes Gurriel Jr. instead. Gurriel resigned with the Diamondbacks for three years and $42 million after an All-Star year and a breakout showing in the postseason.
Gurriel is not only a better outfielder than Kelenic, his bat would measure up better with the slugging Braves. He hit a career high 24 home runs this year, along with a career high 35 doubles, on par with Braves doubles leader Ronald Acuña Jr. Stealing Gurriel away from a potential postseason competitor in the Diamondbacks would've been a considerable blow to them as well.