Some interesting takes, and I agree that it's not black and white. While part of me leans toward the "If you are unwilling to do your job correctly, why is that your bosses fault" argument, I can see the other side of the coin as well. I also think the point about it being Rex's fault for not benching MW is fair, but even that is nuanced. Like it or not, that defense works as a unit. I can understand why a new coach who is trying to install his system handles his star defender with kid gloves, even though he's being a malcontent. You're trying to get these guys to buy in to the system willingly, not scare them into it. It's part of the whole "players coach" mentality, that has seen some success.
What happens if the ship gets turned around on defense next year, and we're in the top 10 on defense? Does Wrex become Rex again?