Our Adidas unis are higher quality than anything Nike has. I've had people that play at Nike sponsored schools tell me this. Also Adidas is paying us a hell of a lot more right now than Nike would. We're really one of Adidas's only bigtime footprint schools in the country and I think one of the only in the SEC. They have Michgan, Notre Dame and some other big schools but not really a presence in the SEC. Adidas needs UT more than Nike needs UT. And they're paying more because of it.
If I remember correctly, Adidas gave us considerably more than Nike on the last bid. Close to twice as much. Also, the another reason that was mentioned is the amount of customised merchandise that Adidas was willing to do versus Nike's "same old shirt different color" approach.