5. Craig Morton (Roger Staubach), 1971 – 22 wins. Led Cowboys to Super V the previous season at age 27. Lost a real-time competition at the season’s halfway point, then served as backup while ...

Cooper Rush had a steady stint as Dak Prescott's backup, but not spectacular enough to be ranked among the Dallas Cowboys' Top 10 best No. 2s.

But lying in wait for the struggling Craig Morton was a 27-year-old quarterback ... After starting three games the previous ...