Deep Throat
Depends on if they meant for it to leak.
More often than not, that's the case in situations like this. As someone else pointed out, PU is quite possibly our most winnable remaining game. They're practically starting the pissboy at every skill position, they're so banged up. The question, though, is if this was deliberately leaked, who leaked it. Doesn't seem like Maturi's style. My guess is it would be from someone in Bruininks office, or a regent.
The other thing that points against it being a deliberate leak is who it was leaked to. This guy at ESPN1500 is a relative unknown. You would think that if someone high up the food chain at the U wanted to get this rumor circulating, he'd pick someone in the local media they're friendly with, or want to curry favor with. And someone with more credibility. Joe Schmidt, for example, or someone else in TV. In print one of the columnists. Probably not Sid, though. Noone would trust him not to burn the source, plus he'd probably garble up the rumor.
My guess is that this was an unintentional leak, and the rumor's been banging around for at least 24 hours or so. In fact, I'd wager that someone at the Trib found out about this yesterday, but they couldn't corroborate it with multiple sources. That's why it isn't there, or in Shooter's column. A sports radio station like 1500AM, however, treats journalistic standards more like guidelines that rules, so they're free to spitball it. Put it out on twitter first, and make sure they don't get a call from a U lawyer 15 minutes later. Then put out an e-article.
Taking the conspiracy theory a step further, maybe the Tribune did catch wind of it yesterday. Their editor (& lawyers) say no to printing it, but Souhan slaps together a column calling for Brewster's head. That way if we do lose to PU and Brewster gets the heave ho, they can claim credit for leading the charge. I wouldn't put that past either the Tribune or Souhan (I know I just defended him, kind of, in another thread).