Austin Asked: When does yahoo fantasy football mock draft lobbies open again?

I know this is really early to ask this but im just curious

Austin Asked: who should i start for week 12? fantasy football?

for runningbacks i can start 2— steven jackson, ryan mathews, beanie wells, kevin smith (det)
for wide recievers i can start 2— brandon marshall, a.j. green, torrey smith, sidney rice, mike williams (TB)

and i also have an rb/wr flex postition. please say who, where, and why thanks