2024 5th round LB Jaylan Ford may be an underrated gem in new Saints defense

I have a question, and hopefully someone can help answer it.
Demario Davis is a MLB in a 4-3 system, what are the differences in a 3-4 system. Wouldn't you just technically have two MLB? Why is that such a difference for the MLB in each system? I would think it would almost help, no?

Thank you in advance.
Demario can play any LB position in a 3-4. He has skills to rush the passer, hold the edge, and defend the pass.

There’s really not much difference it’s just the preference and personnel.

Right now we don’t have the personnel for a 3-4 base defense. We need more LBs, a NT unless we trust Ridgeway but still need a backup. An interior DE. And another edge rusher.

You could argue that we don’t have the personnel for a 4-3 either because our players are old and underperforming.

But the difference between the two defenses is gap assignments and leverage of the d line. You can ask the two interior DEs to maintain outside leverage while the nose tackle 2 gaps or 1.5 gaps.

The goal of either the 3-4 or the 4-3 is to prevent the guards (and/or a FB) from climbing to the second level where they can attack the linebackers. And allow the linebackers to penetrate the line and/or scrape across the line to make tackles.

Dennis Allen switched to a more attacking line strategy in 2024 and the results were bad. Essentially the linemen would jump into gaps instead of holding leverage to restrict the flow of linemen.

With better coaching i suspect we will have better run defense no matter the scheme but I’m excited about switching to a 3-4 and shake up the personnel and scheme!