Yeah I can agree with that. Fumbling isn't really an issue as much as the TIMING of his fumbles. It's always at the worst possible spot, like the last game where he almost carried the offense to the red zone on that one drive and then fumbles at the 5.
On the positive side, lately I noticed from Hall a level of intensity and determination in his drives the likes of which I have never seen. I stand firm in believing that with his catching abilities and running skills he can be a rookie QB best friend and security blanket. He already has over 1000 yards from scrimmage on a team that forgot to use him as a receiver, idiotically gets removed on third down and medium yardage, and when he is behind center, the entire universe knows he will run. Yet he finds yards even when stacked at the line.