Barry is not a coach who will get more out of a defense than the sum of its parts. He isn't creative or bold enough. So what you put in, personnel-wise, is basically what you will get out (or maybe less).
So now you have this situation in the back 7:
-Campbell has regressed horrifically and should be benched.
-Quay is not progressing.
-You're playing a return specialist, a rookie 7th rounder, and a practice squad guy at corner.
-You're playing a couple special teams pieces at safety.
There is not a single, solitary guy in our secondary right now who should be starting. Not one. Valentine has potential but he isn't ready yet.
And this isn't a pass for Barry-- it's the confluence of factors. Downright terrible personnel + a coordinator who is incapable of finding edges to get the most out of a unit.
For contrast, look at Flores in Minnesota. He does not have anything resembling a star-studded group of players. But he is bold and innovative and dictates to opposing offenses. His blitz schemes force offenses out of a variety of run looks and force them to have answers, which puts them in a box.
In other words, he brings value to the table as the coordinator. Barry does not.
