There is no position on a football team more important than the quarterback. By that logic, you could make an argument that the second most important position is the backup quarterback. In Dallas, that feeling has been prevalent in each of the last two years, as the Cowboys cycled through three different backups in 2020 and had to roll with their backup for a game in 2021.
As of right now, the Cowboys have three candidates for the top backup spot on the roster. The leader is Cooper Rush, who started against the Vikings last year and threw a game-winning touchdown to Amari Cooper.