The facts you think this widely known and recognised concept is the "depths" says it all recently.
Monti is doing a fine job. He's found several good players in both FA and the draft. The team finished 12th in total DVOA (putting that one in the for
@kerouac9), it was good enough to have a winning season and good enough to make the playoffs. We were, at the bye week, in pole position to win the division.
The main and overriding reason we didn't, and you have said as much yourself, is that Kyler sucked balls in key games. I mean, like giant, hairy balls. From both Seattle games, to getting outplayed by Bryce Young, throwing an INT to lose against the Vikings with the game in his hands, to having the game on his hands vs the Rams and throwing a badly placed rocket that became an INT. He's the most anti clutch QB in the league.
If Kyler was even mediocre in these situations the team finishes 10-7, likely win the division, and nobody is saying Monti did a bad job.
He got saddled with a crappy QB and there's nothing he can do until at least next year.