What happened: DJ Moore joins Josh Allen after recording 682 receiving yards last season. Buffalo also added Bradley Chubb, Dee Alford and C.J. Gardner-Johnson to its defense.

Why it matters: The Bills have ranked among the NFL's top six in points for six consecutive seasons. Moore's yardage has declined from 1,364 to 966 to 682 over three seasons, but Allen gives him an ideal chance to reverse that slide.