RB Help pls

In a standard league, should I start Lynch or Riddick? I know it probably sounds crazy but the Cowboys have Sean Lee back which makes them a much more formidable defense and Riddick seems to have become the RB1 in Detroit. If the Raiders fall behind, I fear they won’t use Marshawn hardly at all while Riddick can be used in the run and passing game. Let me know what you think.

Thank you.

Standard league; you gotta go Lynch.

I don’t know. I’m just not feeling it with the way the Raiders offense looks right now.

gotta go lynch, the lions hate using runningbacks correctly. abdullah is yet to see if he will be scratched or not. cant trust riddick. if it was ppr ide say riddick but since its standard lynch has the higher floor