If Leslie Frazier called the D at the end of :13, Sean would have fired him on the spot.
Instead, he returned the following season, and despite having an injury plagued D and the near-death of a player, had the #2 ranked D.
When Sean's hand-selected rookie OC only put up 10 points against Cincy with Josh-freaking-Allen as his QB, Leslie got fired.
It took Sean another half season to figure out who the real problem was.
Sean's D was ranked 12th last season.
And now we have a rookie DC.