ARLINGTON, Texas -- The Dallas Cowboys knew they were getting a young backup quarterback that needed development when they acquired Joe Milton in a trade from the New England Patriots this offseason.

Joe Milton III joined the Dallas Cowboys with a lot of excitement, but he's not ready for a starting role anytime soon.

Prescott wasn’t starting at quarterback in the second preseason game of the summer. That designation went to Joe Milton, whom the Cowboys are still determining if he can become Prescott’s backup. Maybe Prescott should have gotten a few snaps because the early indications were he doesn’t have a backup.