I used to think he was a master defensive coach, but this defense stinks and their numbers are more lies than anything else. I mean the past couple of weeks it wasn't like that vaunted rush defense kept the opponent in check. And hell, it's easy to have a vaunted rush defense when the other team always throws for 300+ yard games no matter who is QB.
I think he gets great things out of a lot of scrub players. The problem is as a HC, he kind of builds a team of scrubs. Sometimes those guys play over their heads and win. Mostly they finish 8-8 or around that record. Which is why Rex is around that record as a HC. When you're just a DC and everybody else is making most of the tough decisions, you get to take chances and get the best out of everybody. And you might get great players. He's had his way with a few positions, but other than that, his talent evaluation sucks and the secondary stinks.
Who the hell cares if you have a #1 rush defense who gives up 120 yards to a backup RB on the raiders when you are giving up 300 yards passing a game and hardly ever stop teams on third down. And this goes back to that Steelers championship game as well. That vaunted defense couldn't stop big ben and give the offense one last chance to make a historic comeback. Yeah the entire team sucked for most of that game, but they came back, and the defense needed to make one damn stop. They didn't and that was the last time this team mattered as far as winning. Great defenses figure ways to stop Big Ben. Defenses with over inflated egos find ways to make excuses over the same crap year after year. That's where I think Rex is at this point. Living in the past around having a great defense.
And lets not even talk about his offense as HC.