The Bills have submitted paperwork to the NFL to add Spiller (collarbone) back to 53-man roster, according to ESPN's Mike Rodak. Whether this happens Friday or Saturday, it sounds like the Bills will be adding Spiller back to the mix. Coach Doug Marrone will then decide how much, if any, Week 16 action Spiller will see. If he does suit up Sunday in Oakland, he comes with a ton of warnings while playing on a team that's already using three other running backs, though it'd be good to see him receive some action this week, as he could be a possible Week 17 option for running back-desperate folk.