We all know he's back next year. But you were advocating to keep him because this team lacks stability.
As far as 2020 goes, if he isn't winning games, he's gone. That's how the NFL works. If you're not winning, then it's only a matter of time. Rex produced in his first 2 years as HC, so he was rewarded with another contract, and then declined steadily over his last 4 years. Coaches in any professional sport will tell you, they get hired to get fired.
You guys keep using Tomlin as a model of stability. Guess what...he freaking wins. That's why he's still there.
You keep bringing up Tomlin, we're trying to tell you why he can win when they lose players. Because they've had two coaches in 30 years, three in 50 years, everyone fits and knows the system. We can only accomplish that here if we don't replace the coach every time the natives get restless, like the first half of the first season when you lose your top two QBs.
If you know Gase is back next year, which is what we've been told specifically, what are the pages of "fire him now" arguments going to do? In my opinion the chances of the team doing better with Darnold having a second year in the same system are greater than the chances the Johnsons go out this winter and making the perfect hire. So to me the right move is go with this for right now, more about Darnold than Gase. It wouldn't be the first time a QB has made a coach look better than he is. If he does have to learn another new offense, again, we'll probably struggle early--again--next year and you guys will all want that coach fired.
Regarding Rex, I get why he was fired but it's a whole different argument. Once a coach proves he can win I'm reluctant to just fire him for change sake, because the chances are very good you get someone worse. And that's exactly what happened.