This is the only potential thing I can think of regarding why this defense is terrible now
A little over a week ago, we wrote that the FSU defense changed under Tony White shortly after UCLA fired Deshaun Foster. It was only an observation after FSU opened the season against Alabama and looked like a defense that played with its hair on fire.
We noted that Alabama left some plays on the field, but some of that was due to FSU playing physical and fast, too.