Until now, I had been fairly firmly convinced that Rex's good qualities (good gut feel for defensive scheming; player's coach) outweighed his bad points (big mouth; lack of apparent interest in offense; loyalty to medicore veterans).
Not that he or anyone else cares, but I'm done with him. He is showing a fundamental lack of judgment, IMHO. If four years hasn't been enough for him to get a feel that this guy doesn't have it, maybe it's time for him to be a coordinator for another team. Not now, but at the end of the season. I've seen enough of Sanchez. Ugh.