I think a big part of the problem with the Dallas offense is that opposing DCs have realized Dez Bryant isn't good anymore. He's a nice possession receiver in the red zone but that's about it. Not one of the 30 best WRs in the NFL.
Dez is a rich man's Anquan Boldin, Witten has become a homeless man's Witten, Beasley is a poor man's Welker, and Terrance Williams is an adequate but inconsistent WR3. Their passing attack shouldn't scare anyone.
Does anyone have video/GIF footage of Sanders non-catch against Buffalo? I want to see how similar it is to the Cooks TD catch. The article below is just pictures in a slideshow.