The Cleveland Browns have one of the best defensive minds in the league coaching the defense, Jim Schwartz. He loves run-stoppers. His philosophy is for the defensive front four to be the pass rusher and the linebackers are now free to cover running backs and tight ends in pass coverage.
This means the defense has to have capable backers who can accomplish all of this.
Demetrius Knight of South Carolina is a menace at linebacker. He is ranked #30 so he should be available when the Browns use the first pick in Round 2.