Very true, nobody does one or the other. You may lean one way, and have your personel built towards man/man or coverage...but these guys have played CB in different systems and athletically can adjust.
I wouldn't pick up a guy in a deep cover 2 scheme like Kelly or Barber though. Those guys have been in a very complex cover 2 scheme for such a long time that it would be hard to get out. Get this deal done....get some help up front and take the pressure off our secondary.