Besides the hitting vs pitching difference in philosophy, the Cubs also went through a full 5 year rebuild, where they picked top 5 in the draft year after year after year. The Braves OTOH are trying to short circuit the process to 3 years (likely because of the requirements of the new ballpark) and will have significantly less margin for error. If the wrong decisions are made by the Braves FO, or even if they just get a little unlucky, they could seriously find themselves deep into baseball purgatory for years (not good enough to really win, just good enough to make most think they still can) ultimately leading to another 5 year rebuild starting in 5 years or so.
The Swanson/Inciarte trade was truly a gift from above in that it provided two/eights of the long term lineup. Throw Freeman in there and you have 3/8. Albies looks really close and will likely be 4/8 but Inciarte, Swanson and Albies are all guys who look to be in the 1, 2 or 8 holes. Freeman is best suited as a 4, eventually shifting with age to a 5 or 6. Everyone else currently there is not part of a long term success. So the Braves need long term some production bats who can hit 3, 5, 6 and 7.
People point to Acuna (1-2 years away, probably 3-4 from being a key guy), Maitan (3-4 years away and probably 6 from being a key guy), Riley (bat speed issues, position issues), Peterson (probably a bench guy at best), etc. but those guys will come at different periods at different effectiveness levels all while the current ML core gets older year after year.