you can't just keep playing a guy if he isn't generating results, there's enough to give Romney a couple series,
teams have used this for years... taking the starter out when he seems like he's not seeing the game... letting someone else run the offense while the starter watches from the sideline... and then let him back in with a new perspective..
But Romney has shown the ability to perform, and ZW was struggling, it was a good time to pull the plug