I think these 2 are the biggest "Key" to the Giants offense in this game.
Our run offense is much improved when these guys are playing well, and we all know the run opens up the pass.
Also, they both add a dimension to the passing offense when Eli needs a checkdown. It will be tough to contain a healthy cruz/nicks/manningham combo as well as Ballard in the seam up the middle.
The packers LB's are good enough to run with them, but I do think these two could play pivotal rolls on 3rd and short passes and 1st down as well. These plays will be able to extend drives, and keep the score down, which is exactly what we need to do to win this one.