I wouldn't go that far. Lawson's job on that play was to get to the QB, which wasn't going to happen. I doubt his job was to chip the RB since that would delay his pass rush.
Brown definitely took a bad step. It almost looked like he was expecting the RB to cut back inside. Also, the TE on that side was well positioned to make Brown take a longer path. A well-designed play, I'd say.
Edit: I think I see what you're saying -- perhaps Lawson's job was to decide whether to cover the RB or rush the passer. I'm not sure if Schwartz's defense worked that way, though.