You know even in today's pass happy NFL I believe you build your team up the middle. RB/QB/G/C/DT/MLB/FS/SS
I would also add pass rusher to that, but be strong up the middle and you'll be better off. I think Champ might be the best all round CB to ever play and what has that gotten Denver?
You would be better served to get solid CBs that can play zone defense and be strong up the middle of your team.