I'm trying to decide if I should bench one of my WR's for K. Curtis vs SEA. If I start Curtis, who should I bench?

My other WR's are Boldin vs CAR, McCardell vs PIT, and A. Johnson vs TEN.

My other question is which DST should I go with. IMO both are pretty good plays this week. Either the Ravens @ DET or the Bengals @ JAX.