I've been trying to decide how to take care of some figs.  I've been reading links and recommendations for a couple of weeks.  One thought I had was to try a fabric lined Pot-in-Pot method.  If I can drill the large holes up the sides in both pots at the same time so that they match, use the fabric on the inner pot to reduce the size of the roots escaping the fabric, the inside pot, and the aligned outside pot it should be fairly easy to pull then if I want.  Maybe I will still get the benefit of in-ground planting as it relates to moisture and nutrients.