I disagree. A defense is a QB's best friend -- ask Kaepernick and Wilson. Corners and Safeties should be on our board in the first two rounds too. For all we know Mitchell, Florence, Mikell and/or Munnerlyn could be gone next year.
the first rounders in those secondaries all play S(Reid, Whitner, Thomas)not counting Rogers. there is not a S that is on the level of those guys, HaHa might be. but other then him, i do not see a S going in the 1st. i would however do extensive research on those mid round DBs 3rd-6th because you can get starters from there easily with our front 7.