Sports Incoming Big 12 commissioner Brett Yormark on expansion: ‘The Big 12 is open for business’ July 13, 2022 Alyssa Hertel, USA TODAY Comments Off on Incoming Big 12 commissioner Brett Yormark on expansion: ‘The Big 12 is open for business’ Incoming Big 12 commissioner Brett Yormark made it clear in his first media session that he'd be aggressive in building the Big 12's brand.