Via ESPN.com:
“One source suggested that Prescott might prefer to do a shorter-term deal than the traditional long Cowboys deal that allows them to keep restructuring for cap relief. If Prescott signed a Kirk Cousins-style three-year deal, for example, he’d hit free agency again at age 29. Prescott might also be waiting to see whether the Texans extend Deshaun Watson this offseason, and then he could work off of that deal if it establishes new quarterback standards.”