in my head i assume humphrey is one just because he has such a high floor in terms of helping the team even if he doesn't develop and improve on his deep coverage with his back to the play - obviously it's more ideal if they all pan out but i just meant that if only 2 do then we are still set up well for the future (although it might leave us less effective this year than we'd like)
however, i fully expect, barring injury (touchwood), that all 4 will contribute in some way this year and hopefully siragusa develops at least into a usable backup as a rookie