If Fewell goes after this season, we will bring in another DC who plays cover 2 or some variation of that.
The reason is that will more and more mobile QB's, you can't have corners chasing WR's. They have to be facing the QB.
Its a shame because in the old NFL (and by old I mean just a few years ago) it can be a very effective defensive scheme. But with these rules where you can't hit WR's after they catch the ball (essentially) and you can't reroute them like before etc..... all you can do is get after the QB and contain him if he gets outside contain.
The mobile QB has a huge advantage in press coverage. Just ask GB against SF (who just happened to cut their best press corner).