As the NFL's trade deadline approaches ... there's one move former Cowboys great Jay Novacek doesn't want to see -- Dallas trading star QB Tony Romo ... despite playing second fiddle to rookie sensation Dak Prescott.
TMZ Sports spoke with Novacek about the QB controversy ... and the 3x Super Bowl champ says it's best to stick with DP despite a shaky performance against the Eagles Sunday night.
"He hung in there and had the opportunity at the end of the game to make plays and he made plays," Novacek says.