And the opinion of that megabooster -- Joe Jamail, the billionaire attorney -- is that Brown isn't going anywhere unless that's what Brown himself wants.
"Mack will decide when he goes," Jamail told the Austin American-Statesman. "There are so many rumors spread on the Internet these days, but he is not in any trouble. I would know it. I think he may decide to stay or go, but he hasn't decided yet."
The Statesman's Kirk Bohls writes that Brown and Jamail "talk daily," with the booster saying that Saturday's 38-13 home loss to Oklahoma State had angered Brown but hadn't changed the 62-year-old coach's outlook on his Texas future -- and that he had "no idea" when Brown might make a final decision about that future.
Rumors have swirled about Brown's job status ever since the Longhorns suffered back-to-back nonconference defeats to BYU and Ole Miss early in the 2013 season, rumors that only gained steam when longtime Texas athletic director and staunch Brown supporter DeLoss Dodds announced his upcoming retirement. Though a decisive upset victory over Oklahoma cooled Brown's seat, the ongoing (if largely unfounded) speculation over Nick Saban's potential interest in a Texas vacancy, loss to the Cowboys, and potential season-ending defeat at fourth-ranked Big 12 usurpers Baylor could heat it up again.
In the end, Brown will -- as Jamail claims -- likely have some say in whether he remains Texas's head coach for 2014 and beyond. But there's still enough time left in the season that incoming AD Steve Patterson may wind up needing to have his fair say as well.