Sit Mike Williams, start Keenan Allen (obviously)
We were not going to include Keenan Allen in this because he is obviously going to be started. He is one of the best wide receivers in the league and it makes absolutely no sense to sit him when he has been Justin Herbert‘s main option this season.
I will say, in daily fantasy, I might stay away from him just because of the cost to get him and how much output is going to go to the running backs. But if you can fit Allen in with other players you like then there is nothing wrong with that.
Mike Williams, on the other hand, should not be started in Week 9. Williams is simply far too inconsistent and with the output that is going to go to the running backs on top of the Raiders having a decent secondary, I would not project Willams to have a big day.
Williams had a solid game last week, which based on how his season is going, means he is not going to be a factor in Week 9. He will probably catch a few passes and end up with something around three receptions for 50 yards but that is not enough to warrant starting him unless you are absolutely strapped for receivers.
Heck, I like Jalen Guyton out of the slot more than I like Williams because of the big-play potential in being on the receiver end of a Justin Herbert bomb, something we have already seen multiple times this season.