^ That's my hope also, but most of the pre-snap adjustments to assignments seem pretty set in the 3-4 zone: each player is assigned a zone that he is responsible for. When the player leaves your zone, you pass him off to the player in the next zone. When WRs were crossing routes in, quite often you saw LBs picking up WRs from CBs.
I'm saying that while Safety communication is important, I'm not entirely sure what a Safety can do to keep a CB from not passing on his responsibility to a LB outside of changing from zone coverage entirely.
Having a better SS will certainly help when Safties end up picking up receivers from OLBs or CBs (which certainly they did at times last year). But outside of clearly making pre-snap calls, the Safety cannot really do anything when a LB, say AJ Hawk, is matched up on a WR, say Steve Breaston. That's a match-up that Breaston should easily win (and did a few times in the Cardinals playoff loss).
Perhaps another year in the system makes all our defensive starters know that much faster when they need to switch assignments. Maybe that, and a better communicating Safety, make a difference. However, I'm beginning to think we'll still see a couple of more performances like we did last year simply because this scheme has its vulnerabilities (like any scheme). In those games, we should still have a fighting chance simply because our O is amongst the top ones in the NFL.
The NFL: Where Greg Jennings Happens.