It is funny how everybody is so sure that they know how Lefty will perform based on what we know about him. In the meantime, here is what I know.....
How many games has he started as a Pittsburgh Steeler? The answer.....Zero. That means that he has never had a full week of taking reps in practice, of playing with his receivers, of constantly being coached up.
Of course he looked pretty rusty and completely on the wrong page on Monday night, but don't underestimate the value of the added preparation that comes this week.