Just to refresh your memory:
January 24, 2013: Traded by the Arizona Diamondbacks with Chris Johnson to the Atlanta Braves for Brandon Drury (minors), Nick Ahmed, Randall Delgado, Martin Prado and Zeke Spruill.
Drury is surging up the D-Backs system, after a good season in A-AA. Nick Ahmed's role is unclear with Gregorius and Owings in the system. Randall Delgado was garbage, Prado did some good stuff with the D-Backs.. and was traded to the Yankees. Zeke Spruill is uncertain.
BTW, Chris Johnson is awful... the Braves gave him that extension, and he has regressed offensively and defensively. And don't be surprised if the Braves look at trading both BJ and Justin Upton this offseason.. one's an albatross, the other is a free agent after 2015 and unlikely to resign in Atlanta.