Tennessee Code Title 37. Juveniles § 37-1-184

(a) The department shall develop a system of performance-based metrics and incentives to use with the state institutions, foster and group homes, and any other entities, public or private, that are authorized by law to receive or provide care or services for children under this part.

(b) These metrics and incentives should encourage use of graduated responses, evidence-based programming, and an intended timeline of three (3) to six (6) months for successful program completion.