THIS! If you want Kliff fired, please have a plan for how you're going to get better than him with:
1) Game management/organization
2) Offensive design/playcalling
3) QB Coaching
Because he's doing all three, and there might not be another head coach in the NFL doing as much (McVay comes to mind, but he's been developing more subordinates).
You might be able to get stronger at (1), but it probably comes at the expense of (2) and (3).
This seems like speculation, but I'd be interested in seeing that validated.
There remains progress, and some of the best coaches in the game frequently make seemingly mystifying brain farts.