I think WIlliams can and will just beat out Foster within the fors 3-4 weeks, yuo should be fine there. I;m not a big fan of drafting RB's with the hopes of the startes getting hurt but if I had to this year Betts would head the list.
Overall your team is very solid and Maroney could be HUGE this year, as well as Davis.
How many teams in your league, what is the scoring for your league, is it a redraft or keeper league, if it's a keeper then how many do you keep, how many starters at each position and total players on your roster, is it an IDP league,
Basically I do this because when I first started out in fantasy football years ago, I could never find lists that were well put together and also free, so i am doing this as a service to all those who happen to find this.
remember to include all scoring, ppr or no ppr, TD heavy or yardage heavy.
I also read every newspaper from every football team and keep up to date depth charts for all.
yours isn't free and that's exactly the opposite of why I am doing this. Mine are comprehensive, customizable to their specific league scoring and FREE!!!!!!!