I will absolutely agree that the DB struggled along the way. I will also say that although I am not extremely excited about the hire, I will not hold this year's performance against him. His secondary with the Bills was basically top notch. I know from experience, it is not easy to replace popular coaches, even when it is done in a timely manner. He was asked to come in really late in the game, replacing one of the more popular coaches on the team. My guess is that the DB room wasn't thrilled with the sudden change. He was also tasked with basically taking the scheme that was already in place, which may not have been his forte.
Tommi Hill wasn't bad to start the year, in fact, if you check after after the CU game, he was really popular. He go hurt shortly thereafter and was never effective again. Hartzog has always been too small and a liability. We have a few more who are "slow" and you can't coach slow. Wright actually had a pretty good year under JB.
In all fairness, you really can't judge until he gets a full year with his guys , his scheme, and a group that isn't pissy their favorite coach got let go. With that said, he was NOT my pick to be the DC, but I will give him the benefit right now.