The Chiefs have won the AFC West for eight straight seasons. Patrick Mahomes is still in his 20s. Travis Kelce just signed a contract extension. Andy Reid is the best coach in the game. They drafted Xavier Worthy, the fastest player in the history of the NFL Scouting Combine. Chris Jones is staying put. And they are coming off a Super Bowl season fashioned largely on the back of their superb defense, whose coordinator, Steve Spagnuolo, also received a contract extension. New Chargers coach Jim Harbaugh is a turnaround specialist, and he has the second best quarterback in the division (Justin Herbert).