I know that there have been some root postings here lately but I need some help.
I adopted this orchid from work, which had endured some abuse and was in pretty bad shape when it got to me...it finally bloomed in July

I was surprised by the color, the pinks and whites...and I had four blossoms with another spike now on the way.
Today, I repotted my orchid. I noticed that there were some white, green, and brown roots. I know that you do not cut anything that is basically green or white but, the brown roots were firm and looked healthy. There was no evidence of rot or anything like that.
There were a couple roots that were dead, slimy, and limp. They were definitely trimmed.
I am half tempted to de-pot and take a picture of the root system.
Any ideas on what the problem with the root system might be?
Thanks.