Cabrera played 3B for a long time. He also played LF before and could probably handle that if he needed to.
Most of the "out of position" guys arent that crazy.
Ex: Someone who plays 3B could probably handle 2B without problems. Same rules apply for basically any IF position.
OF is basically interchangeable as well. Some guys have less range and shouldnt play CF, and some guys have weak arms and shouldnt play RF...but other than that, OF is all the same pretty much. If you can play one of them, then you can play them all. (Not saying you would excell in CF if you usually played RF, but you would probably be fine).
As for IF to OF, or OF to IF...that is a little sketchier but most of the time it doesnt really bother me that much as long as the guy is athletic.
For ex: Billy Hamilton played SS in the minors. So putting him at SS isnt that big of a deal, really.
That issues come when Prince Fielder is playing SS or CF.
Or a position player is Catching.