Tyron Smith, La'el Collins and Darren McFadden.
Of their 3 Pro Bowl offensive linemen, there is a 5 star, a 4 star, and a 3 star.
Some on the roster, including Romo and Witten were far enough back that there is no data on them.
Their starting RT Doug Free was a 2 star, as was their 2015 first round draft pick, Byron Jones. Their best defender, Sean Lee was a 3 star recruit.
Star rankings are great, but really don't tell the whole story. Most of these kids develop in college.