I agree it's a bad sign / not good, and the grooming Rusty guesstimation is interesting. But I think you are assigning Wellman ninja qualities he doesn't possess. I don't think he was 8 moves ahead of everyone in hiring Bzd. I think he honestly felt that his combination of great ethics, great Xs and Os coaching and NBA pedigree might lead him to be a homerun hire as opposed to the contact hitters available (brownell, for example, whom people love here but will likely be nothing more than Jeff Jones in South Carolina).
Wellman should be looking golden this week after the clustefuck in Raleigh. I don't think you can read much more into this than what Phdeac has surmised, which I begrudgingly acknowledge as pretty grounded: Battle has got to look out for himself. If there is another coaching change in two years then he's out too and may not land on his feet in the way he could right now.
It's not a good sign no matter how you cut it though. Not entirely surprising, but not good.