Coach K has been successful for a longer period of time that Self has. Nevertheless, as of "right now" Self IMHO is a better coach. I don't care that much, since these lists are specifically designed to get people to argue with each other.
As for Withey, I'm fine with it. Let it be bulliten board material for him. Here's the deal with Withey: he DID emerge as a very good player this year, BUT he had T-Rob usually taking up at least 2 defenders. I'm not diminishing what Jeff did this year, but it will be interesting to see how he does when he'll have a bigger target on his back. I think he'll respond just fine, but #6 isn't a bad spot to be, and he has the potential to improve. I do think he needs to be more consistent offensively to climb the rankings. On defense, he's probably in the top 3 (if not #1 overall).