Despite his defensive excellence, it is becoming clear that Nick Allen needs to be replaced at shortstop by the Atlanta Braves this coming offseason. While his 16 Outs Above Average at short is great, what is decidedly less great are his bottom-of-the-scale hitting metrics and an almost complete absence of power. While trading for Allen was certainly not a disaster and it did allow the Braves to move on from Orlando Arcia, he just is not a long-term solution.
As to what player could be the Braves' answer at shortstop, that is trickier to answer.