I look at it this way. The Cards were the youngest team in the NFL for years and were 5-11 or 4-12. Then they go to the Super Bowl with the most experienced team the Cards have ever had in Arizona. They defy the SB loser curse the next season with those same players and advance to the 2nd round of the playoffs losing only to the eventual SB Champions.
Then a large group of those experienced players leave and the Cards look like the keystone kops and are back down at the bottom of the NFL in most statistical categories just like they were when they had all that turnover in years past.
So you are going to have to come up with a far better argument than KC, who I have no idea what type of experience level they have on their roster, is winning to change my mind.
I'll give you a hint, their experience is less than ours.
The thing is they have good drafts, our drafts suck.
A ton of talent they have is young talent, THEY TRADED OFF JARED ALLEN.
That's something we'd do, only then our defense would suck worse, theirs is holding up.
It's mainly drafting and coaching that's the difference.
We get Beanie and Tim, they get Jamal Charles.
We have Billy Davis and Whis, they have Romeo and Charlie.
They have a GM who drafts well and does decent FA signings, we have Rod.