White punted and played QB as a Sun Devil, but the Cowboys wanted him primarily as a punter, as they were already set at the QB position. So White chose to sign with the Memphis Southmen of the World Football League (WFL).
When the WFL folded however, White signed with the Cowboys in 1976. He was primarily a punter, and a backup to Roger Staubach at QB, in his first few years with Dallas.
Staubach retired after the 1979 season and White was elevated to the starting QB for the 1980 season. In his first season starting at quarterback, White threw 28 touchdowns and led the Cowboys to a 12-4 record. He also punted the ball 71 times for 2,903 yards. Not bad for double duty.
He also went 2-1 in the playoffs that season, starting all three games at QB for Dallas. a
White would become a mainstay at quarterback for Dallas, guiding them to the playoffs in each of the next three consecutive NFL seasons.
In total, White put up the following numbers in his time with the Cowboys:
- 155 regular season passing TDs
- 21,959 regular season passing yards
- 62-30 regular season record
- 15 playoff passing TDs
- 2,284 playoff passing yards