IMO I would go with slaton despite how good schaub has been. Mainly, because A. Johnson usually does terrible @ Oakland when covered by Asomugha. So far this season V. Jackson, D. Bowe and B. Marshall were all held to ~60yds and 1 td @ Oakland. I think they will try to get the running game going with Slaton. I'm looking for advice on this very subject though so I'd let some others chime in too.
10 Team QB Flex 1PPR - Week 3
QB: M. Stafford, J. Flacco
RB: C. Johnson, D. Murray, D. Sproles, CJ Spiller, M. Leshoure
WR: J. Jones, E. Decker, A. Brown, P. Garcon, B. Lafell
TE: J. Finley, M. Bennett
K: D. Akers