Start Nate Washington, Blount, AJ Green, or Harvin? 12 team

[mcdablo]

Hey all and thank you for checking out this post. So for Week 5, do I start blount @ SF (good run def), Nate Wash@Pit, AJ Green@Jac, or Harvin@Ari? Pick two, this is a 12 team ppr. Nate Wash v. Pit doesn't look intriguing but Pit hasn't been that good either. AJ Green has been pretty good so far this year but Jac has a decent secondary. Harvins getting looks and Ari has a bad secondary but it seems McNabb is throwing TDS to everyone but Harvin. Thanks for your help. I'll reply to your question if you answer mine.