They should draft a QB, anyway. Not because of Romo, but because you should always be developing someone. I wouldn't worry about him. It's one week removed, and there are still teams playing - and it could have been them this week. I'm sure he's still feeling it. But, it was a stupid muffed play. It wasn't a stupid decision, it was a freak accident that happened at a terrible time. It has nothing to do with Romo's abilities or decision making. It wasn't a meltdown.
He's y enough and talented enough to bounce back. It'll take time, and a clean slate. When teams are 0-0 and gearing up for next year, it won't matter what happened.