Any in depth info on RRs defense?

I'm interested to know who Ryan thinks can fit his scheme that is on our current roster. Also, I'm interested to know what is our biggest draft day needs. Switching to the 3-4 essentially means that draft weekend is going to belong to the defense. I hope Reiprish has done his 3-4 homework and hits some home runs.

Also, who will be our rush and pass coverage line backers. I think those 2 positions along with a NT are the biggest question marks in my mind.