Hi, I'm asking for my in-laws, she has this Monstera and it does not look good. I think that it is overwatered but I'm not sure. It doesn't have a drainage holes as she pot it straight in the decorative pot but she put some rocks on the bottom of the soil. What will be the remedy for this plant? If we repot it into a plastic - growing pot and put fresh soil, do we cut off all the bad leaves or leave it as is? Thanks in advance!