But he didn't meet his goal. And if we take something a coach says about his gameplan as literal truth after a contest, you will never get a clear picture of what the coach wants to do. No coach wants to reveal anything and they want to escape the attention having revealed as little as possible.
Notice that no one is quite sure what to make of Bevell/Carroll today, because both the blame for the play call. It was a sign of solidarity and a way to avoid discussing the plan and the process. Bevell went off script and tried to volunteer the WR as part of the team effort to lose, but that is the exception.
But I do agree that he is too eager too early to go exclusively to run with a lead. I think the injury to his QB exacerbated that tendency in this game. However, its hard to calculate how the entire offense struggling fed into this decision. Long before they ran 5 out of 6 downs, the offense had ground to a halt.