This hasn't yet been a goal of his.
I'm not so sure this is accurate. Their stated goal was to improve this year, and the moves they made to accomplish that consisted of signings like Bonifacio and Beckham, trades for Olivera and Aybar, and giving a full time spot in the starting lineup to Garcia (who every single semi-knowledgeable poster here, as well as every single writer not affiliated with the Braves declared was not an MLB caliber player from day 1).
Meanwhile, a guy like Freese sat on the FA market forever and ended up signing for peanuts with the Pirates where he is posting his typical 2 WAR season at a position (3B) of extreme need for the Braves. Cespedes ended up signing what will amount to a 1 year contract and has hit 3x as many HRs as all the Braves OFers combined. No actual MLB caliber BP arm was brought in to fix the BP, which is the single easiest/cheapest area of a ball club to improve.
Those are not the types of personnel decisions that inspire much confidence in Coppy's ability to construct a competitive MLB roster.