Huge fantasy Football KEEPER trade?

There are risks either way, but given the available QBs I would probably do it. With Leinart in Arizona, Fitzgerald is likely to see a significant drop-off and it remains to be seen how well Brown will come back from the injury. However, Rogers is head and shoulders above any of the remaining choices as a fantasy QB. Who would be available at RB if you make the trade and what are your scoring rules?