I think Dr Kelso will retire or worse ...Die! So in his will he said he wanted Dr Cox to take his place, therefore Perry is in charge - Woot!

It'll be before the final episode.

you will never know if this is really its final season it might be like 7th heaven when it came back

somehow, I picture Dr Cox the kind of doctor that is rather around patients than spending time with administration and paperwork all day... don't know if he is right for chief of medicine as he's not exactly a diplomatic person either!
Then again, as chief he might be in the position to actually change something around the hospital, so maybe it'd be good.
I conclude:
I'm not sure...

u gta keep celso as cheif their so gud working togeterh and arguin and with celso's power trip over perry!!

Yeah it'd be a good ending.

im not sure but id like him to

Then what does Cox live by? If he won't go private practice then he won't become lazy and sit around doing paperwork!

But he was born for the role XD

I don't really think so because of his anger issue on the other hand Bob is probably causing a lot of problems so I reckon it could just be a totally random new person taking up the job

Go Perry go!!