Well, I was responding to a comment that a DT will never have the same kind of, potential for, or options to impact the game as a QB, any QB, and salary must reflect that positional value judgement, REGARDLESS of the talent displayed by the individual player. I don't agree with that.
Let's leave Ryan Fitzpatrick out of this for a minute and look at the top 1/4 of QB salaries as you mentioned. Alex Smith signed a 4 year, $94 million contract with the Redskins. He is right on the cusp of the top 1/4 QBs, ranking eighth and his salary averages $23.5 M per year. Right in between the $21M we think has been offered and the $25M we think has been demanded.
And FWIW, Garappolo averages $27M per year and Derek Carr averages $25M, so does that make any sense compared to what Donald might want? In comparison to QBs, maybe Donald isn't asking for too much but some QBs are grossly overpaid by comparison?
Okay, first off - YOU mentioned the top 1/4 of QBs. I actually said I thought more than that had a greater value than Donald. I don't know exactly where the cutoff is, but likely closer to half than a quarter.
You bring up Garappolo and Carr, two guys who after showing some good performance were signed to huge contracts. That actually shows how much teams value the chance of having a good QB. Garappolo especially was a situation where the 49ers had to sign him or lose him to free agency, and were willing to take a risk for a potentially huge reward. But even if their contracts were mistakes, I hope you're not arguing that since the Niners made a mistake in a contract, that the Rams should do the same. However, since it's the case that teams do give big gambles of contracts in the hopes of a young player showing that he's worth it - and yet they don't do that for DTs - shows that in the NFL teams don't feel that DTs are worth such a gamble, while QBs can be.
Your Alex Smith example would seem to show that AD is worth less than $23.5 million.
Why a position is worth less should be obvious. Defenders can more easily be schemed against to reduce their impact. Last season, when AD was great at his position, best defensive player in the league, he had 11 sacks, 41 tackles and assisted tackles, 5 forced fumbles. Fantastic for a DT/3-4 DE. Still, only a handful of plays in a game. Yes there were hurries too. But not every tackle was exactly a game changer - teams did game him, did end up gaining yardage on some of those tackles, etc.
Now, how much effect on a game does a good QB have? How many extra completions, how much farther are they, how many turnovers are avoided by good QBs compared to easily replaceable ones. Flat out, I will say that the yardage, TDS, and interceptions will be radically better for the good QB than the replaceable one. The running game will be better too, since as we saw repeatedly over the past 14 seasons, the defense can focus on a good RB if there isn't a real threat from the QB. The difference is far more than what a DT having a fantastic season can do, and every team knows it. That is why the Redskins would trade good value for a quality game manager and immediately sign him to a big contract. They know that without a good QB they have no real hope of competing in today's NFL.
And THAT is why it would be insane to pay AD like he were a good QB. You can't overpay routinely, even if a player is great. The Rams have too many expiring contracts to waste resources.