Cooper Beebe, a third-round pick, is starting at center for the Cowboys despite not having played that position in college. His inexperience, along with that of first-round pick Tyler Guyton at left tackle, has contributed to significant struggles in the offensive line. This has led to communication issues and a lack of effectiveness in the run game, which is the worst in the league. Beebe's growing pains are a major factor in Dak Prescott's difficulties this season, as the offensive line's instability has hindered the overall performance of the offense.