Phal with root and leaf trouble

[Urveeka]

I'm attaching a picture of the roots at the top and the yellowing leaf. I pulled the whole plant out of the pot and the roots at the bottom are still green.

Should I re pot the orchid?
Any help is appreciated.

attached picture

[JoeW]

I'm attaching a picture of the roots at the top and the yellowing leaf.

Thanks for responding to my advice. The experts are giving me rope to hang myself here. Re: the photo; I didn't get posting photos right at first either. It is confusing. I would whack the inflorescence down a little lower. I zoomed the photo. Your orchid looks like it may be having problems. The green looks like it is retreating. That darkness on the root looks like black rot. The tiny green root bud to the right is growing out just ahead of a deadly root mess. The first symptoms of black rot are shriveled leaves or pseudobulbs and then leaves will turn yellowish and finally drop off. If you remove the plant from its medium and you find that most if not all root ends are blackening, going brown or brownish and withered, there is a very serious problem. Trim the rot off and treat with a funglcide. I hate sphagnum as it helped me kill my first couple of orchids and so I say repot in a bark mix ASAP. IMHO. Joe