The Dallas Cowboys have an above average quarterback in Dak Prescott. Given that the position is the most important on the football field, that statement alone makes this team a perennial contender.
In the NFL, if you have a better than average quarterback, you have a shot. If you don’t, you don’t.
Last season, of the top eight quarterbacks in passer rating, seven made the playoffs and only one did not lead his team to a winning record. Of the bottom five quarterbacks in passer rating, none led their team to more than six wins and three of the five finished in last place within their division.