Chargers' No. 3 on defense: Khalil Mack
If you look at the numbers it was a down year for Khalil Mack. There is no doubt about that. But that was kind of expected with where Mack is at in his career. Regressing as a veteran pass rusher is a common thing and nobody expected Mack to be the best pass rusher the Chargers had.
Mack may not have had the kind of production he would have hoped for but a large reason for that was Joey Bosa's injury. Opposing teams did everything they could to slow Mack down and while that limited his production, it opened up other things in the pass rush; especially late in the season. That is worth something.
Chargers' No. 3 on offense: Corey Linsley
Corey Linsley has quietly been one of the best centers, if not the best, over the last three years. Some small issues resulted in him missing marginal time and if that didn't happen maybe he would have ranked second on this list instead of first.
Regardless, Linsley is the most important member of this offensive line without Rashawn Slater and that was incredibly obvious when he didn't play. Elite center play can get overlooked by many but it shouldn't be with Linsley.