Agreed, but defense is at a disadvantage in the NFL. No matter who you get on D at some point you are not going to match up well against somebody and the offense is going to move the ball if they have the players to do so. You're best bet is to have offensive weapons. Look at what an average but experienced Flacco just did with Higgins and Chase.
.... the Bengals have missed the playoffs tge past two seasons and probably will again this year.... they are not the model to emulate