How can I replace a water-rotten support post on my deck? I would like to do this without digging up all the concrete. Is there a way to support the deck and remove the rotten post? I was hoping I could support the deck, remove the rotten post by cutting it off at the ground, then chisel out the old wood and put in a new post. If this were possible to do, this would minimize the amount of concrete that would have to be removed. Thoughts!