You would give up LT for the whole season for Sproles straight up? I would hope the league commish would not allow that. In a week or two, LT the monster will be back, and Sproles will be riding the pine.
I wanted to go with Peterson with the #1 pick in the MeCha draft but didn't have the will to go against the consensus fantasy guru pick. Still, I'm happy to have LT even though he's a big part of my being 0-2.