While discussion has centered around replacing the injured Terrell Suggs’ pass-rush ability and emotional leadership, that doesn’t tell the whole story of the challenges lying ahead for the Ravens defense. The addition of veteran Jason Babin should help the pass rush, but the 35-year-old isn’t known for being stout against the run, though he played well in that capacity for the New York Jets last season. Head coach John Harbaugh has already confirmed that Elvis Dumervil will assume duties as the rush linebacker on first and second down, meaning the 31-year-old will have a much larger role than he did in his first two seasons in Baltimore. With Suggs and the run-stopping Courtney Upshaw playing the outside linebacker spots in the base defense, Dumervil rarely saw action on early downs against most teams. Dumervil may not be a major liability against the run, but he will be replacing a player who’s been one of the NFL’s best at setting the edge for over a decade. Even with his advancing age, Suggs graded as Baltimore’s second-best player against the run last season and was first in 2013, according to Pro Football Focus. His pass-rushing counterpart the last two years will now
