The Mathematica documentation states that vector analysis "functionality" is now built into Mathematica, and trying to load the VectorAnalysis` package produces ominous messages about conflicts with standard Mathematica things.  However, functions like CoordinateSystem[] and SetCoordinates[], are missing.

It appears I can set coordinates within Div[] and Grad[], for example, but it is awkward to do this repeatedly.

Is there any way to set the working coordinate system in v. 9?

I did try to search for relevant terms in the list, but hopefully I've not missed obvious previous discussions on this.