When will Le'Veon make an impact?

On Wednesday, we discussed why fantasy owners would be wise to temper their expectations for Isaac Redman, even though he's been dubbed the Week 1 starter at running back. Even if he manages to exceed expectations in the early going, ESPN NFL Insider Adam Schefter noted in his most recent mail-bag column that rookie Le'Veon Bell could be back in the mix usurping touches from Redman sooner than later.