Bogaerts is the only defender who should not project as at least above average positionally (and he could be above average, but he has some catching up to do). Ramirez of course is harder to predict, since a lot of it is just mastering the wall. Crawford was the league's best defensive LF, and was a catastrophe in Boston (and now back to fine in LA). If Victorino is healthy, right field is clearly elite - and if it's Castillo, the early evidence is promising.
http://grantland.com/the-triangle/mlb-2015-al-east-preview-red-sox-blue-jays-orioles-rays-yankees/
Now with Vasquez out, the framing and throwing might go down a bit - but the larger point still holds. The team is well equipped to catch the ball, if the pitchers keep it in the yard.