KNOXVILLE, Tenn. -- The memorandum of understanding signed between Greg Schiano and? University of Tennessee?athletic director John Currie for Schiano to be Tennessee's next head football coach was not signed by the university chancellor, chancellor's office spokesperson Ryan Robinson told ESPN. Lawyers on both sides are expected to argue whether it's still a binding legal document and whether Schiano is owed any compensation without the signature of Tennessee chancellor Beverly Davenport, who released a statement about the hiring fiasco Monday, saying, "I deeply regret the events of yesterday for everyone involved."? Currie, in his first year as Tennessee's athletic director, signed Schiano to a memorandum of understanding on Sunday. A plane was waiting in Columbus, Ohio, to bring Schiano to Tennessee that night and introduce him as the Volunteers' coach. But Tennessee backed out of the memorandum of understanding following outrage by fans and state politicians when news...