Cattleyas at death’s door.

[Waspdog]

Hi Orchid People,
As I said in my intro, the other day, I am having to deal with a whole range of orchids that my wife has purchased and more or less abandoned after flowering. The pictures below are of what I believe are Cattleyas and have been gradually getting sicker and sicker. They were in terracotta pots with no drainage, no holes and embedded in rotting coconut husk. I have removed the yellow leaves and rotting roots and pulled away the soggy coconut husk. The photos shows what remains. I plan to let them dry out a bit but I would be grateful if anyone can provide any advice on how to rehabilitate these.