That's the price you pay for having an entire defense based on speed, they just get dominated by bigger offensive lines.
Pretty much the same with the Eagles. I remember years ago when they were getting burned by running backs like crazy. Then they went for more speed with smaller linebackers and it ended up biting them in the butt the past 2 seasons. You gotta have a balanced defense to win the big one. It's hard though as the NFL just keeps getting quicker on offense.