The only thing I can think of is to put Giordano at SS since he'll be covering TEs and need speed to play the deep safety position in Cover 2.
Also make sure you have Will Blackmon starting. He's not even a starter, but he's 6'0" and has 92 speed.
Possibly move Clay Matthews, since he's your fastest LB, to MLB #2 for A-GAP blitzes. If you do that, put Barnett at ROLB, in Matthews' old spot.