People blow up the zone blocking scheme into a mystical run saving scheme just like they do the 'west coast offense'
Even last year we had power running plays. Every team has a counter play. Every team has a power play. Every team has a trap play. every team has a stretch. Every team has a stretch. Every team has at least a few zone runs in their playbook. Having a good running game isn't predicated on what system you run, but who is running it. Yeah, some guys are better suited for power running plays than others, but everything is a mixture of systems nowadays.
I don't care if you're running a zone blocking play, a counter, I don't even care if you give the runningback a machete. With lack of effort like this it isn't hard to see why we can't run the ball. It all starts with accountability. If I was Pettine I would have replayed that play over and over again in film study and asked Dray if that is the type of effort he gives to his football brothers? If that is how he wants to represent himself on the field? If he would be proud to watch that with his kid?
No, then pick up your God damn play. There is a difference between missing a block and immediately springing up, being flat footed, and not even laying a hand on the LB. And don't give me the 'oh but he's a TE and that was a mighty OLB.' If you can't even get in front of someone and you are as mediocre of a pass catcher as Dray then honest question, why are you on the roster?
There is obviously a lot that goes into the running game, but without effort from every guy plays will consistently be blown up. 5 outstanding blocks and a whiff still results in a guy with a free shot in the backfield at our RB.