I'd hate to trade away our first marquee FA signing in franchise history within 2 years... but yeah you would make this trade.
Challenge: Can anyone think of a way to make a Davis-To-Boston deal possible WITHOUT having Horford involved? Maybe with a 3-team deal?
On September 7th when Morris can be traded, Boston can then trade Tatum, Brown, Smart, and Morris for Davis. Some additional small dollar salaries could be included as well, to help balance out Boston's roster a bit, but that would be the general package.
In other words, without Horford it would be hard from a roster standpoint, but not impossible.