I just dont understand this narrative.
The problem with this defense has been the personel, especially on the d-line for years now. We had the 2nd ranked defense in the league in 2009 under Wade and these were our CBs:
Terrence Newman
Mike Jenkins
Orlando Scandrick
Alan Ball
Gerald Sensabaugh
In 2012 we go out and trade a 2nd to move up for Morris Claiborne (a move most of this fan base applauded). This was after we gave Brandon Carr 50m contract (another move the fan base applauded). How did those moves turn out? We've had a below average defense since because we never properly fixed this front 7.
Stephen said himself that the top priority heading in to the offense was to fix the pass rush.
Front 7s can make corners better because:
1. The QB has to get rid of the ball quicker bc of pressure
2. Corners dont have to cover for an extended time
Corners dont make the front 7 better
You only have to look at where CBs get drafted or at how they get paid by all GMs from all teams over time to understand the narrative that CBs are valuable because they are scarce. That's simple supply and demand, and it's been the way the NFL has done business for decades.
That 2009 secondary was a decent one. At least the CBs were. I'm not sure that it supports your point.
Mo's draft selection was applauded because he was widely considered to be the best defensive player in that draft, and because we gave up what was generally considered less than market value to get him. But he never played to that level. The way I remember the Carr signing was that people were relieved that we filled an obvious need with what was a big-name FA at the time, but everybody knew we'd paid a premium to do that. The argument isn't to overpay for players or to draft badly. The argument is that DBs who can actually play are valuable. And that's been supported over and over and over over time.
Similarly, we've spent resources on the DL in recent years in Gregory, Crawford, trading up for Demarcus Lawrence, and in giving Greg Hardy another shot. The fact that none of those players have become true impact DLs doesn't suggest that DL is not important. You have to hit on the picks.
And I wouldn't argue that pressure doesn't make QBs unload the ball quicker. That's obvious. Just like better coverage makes unloading the ball successfully harder to do. The argument is that you have to be solid everywhere on defense or you're going to get exposed.