I say 6-10, but he might not get a true "start" at all. Deuce is going to be the feature back unless he gets hurt, Bush will be a spell runner and multiposition guy all year.
I think he will start game one just to try him out see if he is good enough for the nfl level then if he does good then they will start him for the rest of the season so if he does good for the first quarter i say like a TD or two then he will start the whole season for them
Deuce will be the starting back unless he gets hurt, the organization has said this several times, but Bush will see enough time that he might as well have started.