The 2016 Falcons had the:

#1 offense under Kyle Shanahan
#26 defense under Dan Quinn

Nearly won the Super Bowl

Kyle leaves, Quinn stays

The defense is still bad:

2017: #28 defense
2018: #31 defense
2019: #26 defense

and without Kyle, the offense hasn't been the same.

— Warren Sharp (@SharpFootball) October 8, 2019