I think Romney's decisiveness is better than Hall and even Wilson, which was a big part of only getting sacked twice. Was refreshing to watch.
Also he was willing to take chances with passe stop our WRs even when there was right coverage. Have our guys a chance to make plays, and they did. And he didn't do this into double coverage...only right single coverage.
That being said, Hall has a higher ceiling and I dont think he loses his job because he got a concussion. If Hall isn't playing well in the first half I think you send out Romney though.