Correlation doesn't always equal causation.
Connor Williams was forced to miss time after injuring his knee in the Dallas Cowboys loss to the Tennessee Titans.
Former second-round pick Xavier Su'a-Filo filled in for Williams, and Dallas' offense promptly took off, averaging 137.25 rushing yards per game, 224 passing yards per game and 23.25 points per game with Su'a-Filo in the lineup. When Williams started at guard the Cowboys averaged 125.88 rushing yards per game, 188 passing yards per game and 17.5 points per game. Moreover, the team is undefeated with Su'a-Filo as the starter and just 3-5 with Williams manning left guard.