Help! One of my colleagues had a beautiful fiddle leaf ficus in tree form that was really struggling in standard potting mix. They were about to throw it out, but I asked if I could rescue it. After going around Queens NY for gritty mix supplies, armed with bonsai screen, dust mask, and goggles, I managed to sift and mix enough gritty mix. I then filled a large rolling suitcase with the mix, brought it into the subway, and managed to lug it all to my work. Tonight was the big night, and I stayed late to do the repot. Unfortunately, when I exposed all the roots, I saw that they were heavily encircled in about a 10 inch diameter around the trunk. The encircled roots formed a sort of steering wheel that was thick enough for me to lift the tree just by the steering wheel. . (The pot that it had been in was much larger than that, so it must have come from the nursery that way.) There were very few fine roots, in fact, the tree wasn't even anchored into the pot. It was leaning against the wall. I untangled what roots I could and put it in the gritty mix for the night, but I am not sure what to do next. Given that the fine roots were so sparse, I was hesitant to prune anything. Especially since it is so late in the season. Any advice? And how am I gong to keep this guy from tipping over while he puts down new roots? Am I going to need to stake him? I have grown very attached to this tree and already spent many hours trying to save it.