But the Chiefs played in way more close games last year than you might remember. In 2018, the Chiefs led by 6.9 points on average at halftime and held 11 halftime leads. In 2019, the Chiefs led by 7.5 points on average at halftime and held 11 halftime leads. But in 2020, the Chiefs led by only 3.5 points on average at halftime and held only nine halftime leads. With games far more in doubt at halftime in 2020 than in prior years, the Chiefs had to do two things they haven’t done in decades. First, their defense (behind defensive coordinator Steve Spagnuolo) had to hold opponents to only...