Tennessee Code Title 40. Criminal Procedure § 40-34-105

(a) If the objectives of the agreement cannot be met by the department of correction, or if programs or services referred to in the agreement are not available, the department and the board of parole may establish alternative objectives or programs for the prisoner.

(b) If the prisoner cannot complete the prisoner's part of the agreement for disciplinary reasons, the commissioner of correction, or the commissioner's designee, may, for disciplinary purposes or for the safety of the institution, remove the prisoner from the contract sentencing program, in which event the agreement shall be void; provided, that a new agreement may later be entered into with the prisoner in the discretion of the commissioner and the board.