Free-agent acquisition Calais Campbell has been the most impactful defensive player in the NFL this season. Marrone acutely values the 31-year-old's domination and leadership -- and why wouldn't he? Just seven games into his Jaguars career, Campbell's already set a career high for sacks in a season (10). He's a humble giant, too. In the studio with us on CBS Sports Network during his bye week, Campbell heaped praise on the Jags' secondary and called Jalen Ramsey the Defensive Player of the Year. I think Ramsey and A.J. Bouye comprise the best corner combo in the league today. All in all, the Jaguars' defense is superb. And consider the offensive lines they'll match up with over the next eight games: Bengals, Chargers, Browns, Cardinals, Colts, Seahawks, Texans and Niners. Sacksonville indeed!