First, it is our D that needed the most help.
Second, the Dline was going to be good and a strength with or without Suh.....but with Suh it will be all the better.
Third, our CB play last year was spotty and I think a few teams exposed that.
Fourth, when you can play man coverage on both halves of the field, knowing that you can defeat pretty much any WR (no doubt some you are better off to double sometimes) you can blitz more, dedicate more men to first playing the run, and it forces the QB to hold the ball longer.
If our CBs, and secondary in general, becomes the lock down, WR frustrating unit it appears it can be on paper, it is going to cause our scoring D numbers to go down, and our O scoring numbers to go up because the Rams will have the ball for more possessions.