Peyton clearly has problems with arm strength, but his awareness and smarts are still top notch. Therefore I think he will be likely to want to utilize the run a lot so he doesnt have to air it out a lot...he can hand it off a lot and set himself up for short 3rd down conversions instead of taking shots on 1st and 2nd down. Also, same with the goal line situations. Defenses would notice this and try to stuff mcgahee if it were somebody else. However I think manning is the most capable qb to recognize when his RB has a good shot at a good gain. Therefore he will utilizes many audibles to get some solid running out of mcgahee, especially out of the shotgun. Couple this with the fact that the broncos play the raiders twice and the chiefs twice and the chargers twice, and the fact that mcgahee had an awesome game yesterday, I see no reason why mcgahee can't finish as a top 15 rb, making a solid rb2.