Editing Super Bowl XII (section)

===Staubach v. Morton===
The main storyline surrounding Super Bowl XII was Cowboys quarterback [[Roger Staubach]] versus Broncos quarterback [[Craig Morton]].<ref name=stvsmor/> Morton began his career playing for Dallas in [[1965 Dallas Cowboys season|1965]]. Staubach joined the Cowboys in [[1969 Dallas Cowboys season|1969]] after four years of service in the [[United States Navy|U.S. Navy]], and soon both quarterbacks competed for the starting job. During [[1970 Dallas Cowboys season|the 1970 season]], both Morton and Staubach started for about half of the regular season games. Morton was ultimately selected to lead the team through the playoffs and eventually to their [[Super Bowl V]] loss to [[1970 Baltimore Colts season|the Baltimore Colts]], 16–13. The next year, Staubach won the starting job and eventually led Dallas to defeat [[1971 Miami Dolphins season|the Miami Dolphins]] in [[Super Bowl VI]], 24–3. Staubach was also named Super Bowl MVP during that game. In [[1972 Dallas Cowboys season|1972]], Morton started most of the Cowboys' games as Staubach was out with a separated shoulder. However, in the division playoffs against [[1972 San Francisco 49ers season|San Francisco]], Staubach relieved Morton and rallied the team to victory, which assured Staubach of the starting job going forward.  Morton was relegated to backup status until he left the team in [[1974 Dallas Cowboys season|1974]] to join [[1974 New York Giants season|the New York Giants]].