Former NFL head coaches Marvin Lewis and Mike Zimmer preview the Cowboys vs. 49ers Divisional Round matchup. Dallas is playing their fourth straight road game, and it is coming against the best scoring defense in the NFL. The 49ers will look to knock Dak Prescott back off of his game. However, the Cowboys offense, which is very good on 3rd downs, could take advantage of a 49ers defense that is average on third downs. Additionally, their ability to go under center and use play-action could help the offensive line protect against a ferocious pass rush.