If he is more comfortable with passing downfield, and they let him pass downfield that will give the offense a new look. This dink and donk passing with running isn't getting the job done either by design or maybe Lewis isn't comfortable looking downfield. One thing I think McNabb or someone said, when you know you can make plays with your legs as a QB sometimes you don't give the other skills a chance, reading defense, reading passes down the field and such because your mind sometimes will go to if not there I am running instead of giving things a chance.
Or go to a short passing game, not screens but like routes 5-10 yards down field, quick catch or something like that to build that confidence up. Or like I said move Lewis to another position to give his legs help us and maybe Bianco's arm to help us that way