I'm as unhappy as anyone about the way the team has played (it's not just the record).
But Rex is obviously fine and I'll hold off at least until the end of next year before I eat him alive. We've had a ton of injuries and, of course, his scheme and methods will take some time to implement.
There were articles about this when he was hired, and I was a not the only one a bit worried at the hire. But once it was done it was done. Give him time. His defensive reputation is earned (if nothing else).