Watching Atlanta's OL, TE's, and QB it's clear they are significantly behind the Cowboys. Their WR's and RB's are ahead at this point however.
Cowboys need to find ways to attack deep, and I don't think they can count on Williams for this as he'll become more of the defense's focus.
At this point I'd double Witten and put one CB on Williams until he proves he can beat single coverage.
Romo will have to get creative and stay patient then. I'd make sure every back on the roster catches at least two passes. Even Klutts. When the defense is sick of being gauged from all the dinking and dunking, then you hit someone (anyone) deep.