Grading every NFL team at the midway point: Chargers get an 'F,' three teams get solid 'A' grade
Buffalo is among the highest-rated teams, while the Eagles sit at the opposite end as a big disappointment

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Grading every NFL team at the midway point: Chargers get an 'F,' three teams get solid 'A' grade (opens CBS Sports in a new tab)
Buffalo is among the highest-rated teams, while the Eagles sit at the opposite end as a big disappointment
