Aaron Glenn, Detroit Lions (Photo by Tim Nwachukwu/Getty Images)
The Detroit Lions fielded the worst defense in the NFL last season under the watchful eye of former head coach Matt Patricia and first-year defensive coordinator Cory Undlin. The Lions allowed a league-high 419.8 yards and 32.4 points per game to opposing offenses in 2020.
WIth Patricia being replaced with Dan Campbell as head coach and Aaron Glenn replacing Undlin as defensive coordinator this offseason, the hope is this combo can drag the Detroit defense out of the gutter and into the light.