Low Positive

I think that the closest corollary to this situation (or at least the closest one that I can I think of) is Rick Pitino. After failure at the Knicks, goes on to UK where he has one of the best college jobs in the country. Then, gets the call from the Celtics and takes the job. All he did was to reconfirm the fact that he was a terrible NBA coach/GM. So you don't even have to speculate about him pulling a Calipari, ego would be enough to explain the move.