That is true that we don't have any depth at CF next season but on the flipside we can now start a non-turd at 2B.
Starting 2B > AAA CF Depth
And I know if it were up to you you wouldn't be starting a turd (Kawasaki, Goins, etc.) at 2B, but for now the move is an improvement.
I also bet that the organization feels that Pompey has passed Gose, thus making Gose even more expendable so getting a guy who can start at 2B is a nice move in their eyes.
And I don't disagree with the FO, I do like the move. But it's not very inspiring. Talent wise it's damn near a wash we just traded someone who was somewhat expandable for a similarly talented player at a position of need.