She signed a seven year deal in 2007. I expect she'll be given a chance to see what she can do with Peoples, Reed, Fussell, and Stafford when she arrives next year, but she's definitely skating on thin ice. So far, the only real claim to fame she has with respect to the Texas job was driving WCBB salaries up across the board.
I mean, she made WCBB at Duke. And sure she had a great vision to sell: terrific school, Duke's men's team was winning championships and she was going to do the same thing on the women's side, etc. But Texas has every natural advantage you'd want. Facilities are out of this world, and student-athletes generally get the best of everything. UT overall may not be Duke academically, but it has programs within the university that are absolutely top notch. Austin is about as great a college town as you could possibly hope for. Despite this, GG has failed to connect with high school coaches in Texas, and is also dealing with the first-mover advantage issues Baylor and A&M have enjoyed. Jody Conradt really did leave the cupboard bare for all her accomplishments back in the day (and periodic quality seasons subsequently).
The obvious question being who you'd replace her with. Texas has an infininite budget if they want to go that route. But no one they'd bring in would have close to the kind of track record GG had at Duke.