Khalil Mack couldn’t wait to watch and rewatch all that went haywire during the Chargers’ 35-6 loss Nov. 16 to the Jacksonville Jaguars. So, he said he began dissecting the video as the team’s bus departed the stadium for the airport and a cross-country flight home.

Mack didn’t have to do it at that moment, but he was eager to learn what he could from the Chargers’ widest margin of defeat in Jim Harbaugh’s two-season tenure as their coach. He could have waited until after the Chargers’ bye in Week 12 and used it as preparation for Week 13.

But he believed it was best to begin the process of fixing all that went wrong as soon as possible, the better to prepare to face the Las Vegas Raiders on Sunday at SoFi Stadium and for the final five regular-season games to follow. Clearly, something

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