The Braves seem to have decided there is value in jumping on free agency early, even if it might cost them a little more in the end. Two years ago, they signed Donaldson in late November. Last year, they signed Will Smith before the QO deadline, d'Arnaud in late November, and Hamels in early December.
This year, they've already added Smyly and Morton. The only other significant free agent moves so far have been Robbie Ray re-signing with Toronto and Stroman/Gausman accepting their qualifying offers.