Sean miller talking to Pitt. He would't leave Arizona would he?
Makes sense after I think about it. First, most people would say Pitt is a step down from Arizona. But, think about it from Miller's perspective. If he's innocent ... (I'm not sure he is, but my opinion is not the issue) ... then he's lost his ability to recruit to Ari. That will result in losing teams, which will result in getting fired.
Taking a new job says, "I'm innocent" louder and more effective than doing it from Ari. It also indicates that a reputable school has done their homework and also consider him to be innocent. He'll have lots of time to build a program at Pitt. If he does well there then he'll use it to take an other high level job.
Everything I've said above is based on him being innocent and the FBI eventually clearing his name. (That's a big 'IF.)
If he's guilty then Pitt will have major egg on their face. Miller won't care what he did to Pitt at that point because he'll know he's finished either way.
I can see the strategy behind him taking a lesser job. He's finished at Arizona. The lack of ability to recruit top players will get him, or the FBI will name him.