Orton's a victim of the garbage QB development that's been happening in Chicago since the start of their franchise. I'm going to be upset if they fuck it up for Jay Cutler too.
As far as the game yesterday went, Orton drove the length of the field on the first drive and than made the bad throw in the endzone, and really it was also a good play by the defender. Orton's second drive he drove 30 yards and then ended in another terrible throw. The third drive was garbage for Orton after the 1 play. The fourth drive covered three first downs before punting. Not sure what you were watching, but hardly "horrible". He moved the chains and had a very good 3rd down conversion. He made 3 glaring mistakes.
If he doesn't fix those terrible mistakes he made, he won't be the QB in Denver, simple as that. I wouldn't say he was horrible, he just makes idiotic Brian Griese mistakes. But he'll have to iron that out if he wants to QB this team..