If as David Carr says "all our receivers were covered up," then you have to throw to Davis. If you go with an empty backfield and take DD out of the game Carr will get killed. Teams only rush four guys because that's all it takes to sack Carr five times. If our O-line can protect better, then the defense will have to bring more than four guys and maybe then our receivers can get open.
We don't lose games because of DD. We lose games because we are not a good team. Our O-line is bad and we have one of the worst defenses in the league.
A good argument is always spoiled by someone who knows what they're talking about